Each Shark FlexStyle attachment is designed for a different job: the concentrator directs airflow, the oval brush dries and smooths as it styles, the diffuser dries curls, and the auto-wrap curlers create curls. Which tools you get—and which ones fit—depends on the specific FlexStyle model and kit. Check your unit’s model number and the exact accessory listing before buying.
What does each Shark FlexStyle attachment do?
Use the attachment that matches your styling goal. The descriptions below reflect Shark’s product information, not independent performance testing.
| Attachment | Best suited to | What it does |
|---|---|---|
| Styling concentrator | Directed airflow and smoothing | Rotates to direct airflow. Shark describes it as an attachment for straightening and smoothing hair. Shark’s concentrator listing |
| Oval brush | Brush styling with smoothing and volume | Dries while styling. Shark says its boar and nylon bristles grab, smooth, and defrizz hair while adding volume and bounce. Shark lists it for straight, wavy, curly, and coily hair; that suitability statement is the manufacturer’s. Shark’s oval brush listing |
| Curl-defining diffuser | Drying curls | Designed for fast, even drying, with prongs that retract or extend for different hair lengths and thicknesses. Shark’s diffuser listing |
| Auto-wrap curlers | Creating curls | Shark says the curlers wrap, curl, and set hair automatically using Coanda technology. In the HD430 kit, the two curlers are 1.25 inches and curl in opposite directions. Results may vary with hair type and technique. Shark’s HD430 listing |
Which attachment should you use?
- For directed airflow or a smoother style: Choose the styling concentrator.
- For brush styling, smoothing, or added volume: Try the oval brush.
- To dry curls: Use the curl-defining diffuser and adjust its prongs to suit your hair.
- To make curls: Use the auto-wrap curlers; the two curlers in the HD430 kit are intended for opposite curling directions.
How to adjust the diffuser prongs
Shark recommends changing the prong position according to hair length and thickness:
- Retract the prongs for shorter, finer hair and to use less heat on the scalp.
- Extend the prongs for longer, thicker hair, or to reach and lift hair at the root.
These are Shark’s recommendations; the best position may depend on your hair and how you use the dryer.
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- FAST STYLING: Fast, even drying from root to tip with deep bowl for styling larger sections cutting down on drying and styling time.
- COMPATIBILITY: For use with Shark FlexStyle hair dryers (HD400 Series) only; NOT compatible with FlexFusion or SpeedStyle hair dryers. Please check hair dryer model before purchasing.
- PETAL DESIGN: Creates a more natural hold on curls to maintain volume while you’re styling.
- EXTENDED PRONGS: Recommended mode for longer, thicker hair that reaches and lifts the root. Adjust the lever to switch between extended and retracted positions.
- RETRACTED PRONGS: Recommended mode for shorter, finer hair for ultimate coverage and less heat on the scalp. Adjust the lever to switch between extended and retracted positions.
What other FlexStyle tools are available?
Shark also lists a paddle brush, round brush, and wide-tooth comb as accessories. The product information cited here does not establish their detailed techniques, so check the current product page or your manual for guidance on a particular tool. Shark’s FlexStyle accessories page
Do Shark FlexStyle attachments fit every model?
No. Shark publishes compatibility by accessory, and the model lists differ. Its oval brush and styling concentrator listings name HD400, HD410, HD420, HD430, HD430C, HD435, HD440, HD430REF, HD435REF, and HD432PK. The diffuser listing names HD400, HD435, HD440, HD430REF, HD435REF, and HD432PK. Confirm the model number printed on your unit against the listing for the exact part you want.
Rank #2
- Compatibility – This round volumizing brush for Shark FlexStyle HD400 Seriess (For HD400, HD430, HD432, HD435, HD440 Model) . Not Compatible with Shark FlexFusion/Glam HD600/HD6000 Series. Not Compatible with Shark SpeedStyle/Pro/Pro FLEX. Not Compatible with Shark HyperAIR
- Smooth & Shiny Results – Round brush for Shark FlexStyle attachment with upgraded bristle arrangement glides effortlessly through hair. Round volumizing brush designed for fine, medium, and thick hair across all textures, increasing shine, smoothness, reducing frizz, and minimizing breakage for a polished, salon-quality finish
- Fuller Volume with Root Lift – Medium-sized round volumizing brush barrel lifts roots while adding body through the lengths, creating airy bounce and long-lasting fullness without weighing hair down or causing breakage
- Upgraded Barrel Size Attachment – Engineered with optimized airflow and refined bristle density, this for shark flex style attachment round brush tension evenly for better styling control, and improved durability
- Versatile Styling Performance – Straighten, curl, smooth, or volumize with one for shark flexstyle round brush attachment, creating professional-quality styles while reducing breakage and keeping hair strong and healthy
These compatibility lists come from Shark’s US product listings; they are not a universal guide for every sales region. Check the current listing for your region before ordering.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Which attachments come in the box?
FlexStyle bundle contents vary. Shark’s US HD430 listing names two auto-wrap curlers, an oval brush, a paddle brush, and a styling concentrator. Its HD435 diffuser kit lists auto-wrap curlers, an oval brush, a curl-defining diffuser, and a styling concentrator. Neither bundle should be treated as the standard contents for every FlexStyle.
Rank #3
- STYLE WHILE YOU DRY: Attach the Round Brush to the Shark FlexStyle to smooth, defrizz and add volume & bounce, while delivering powerful airflow.
- STYLE YOUR BANGS AND LAYERS: Includes a combination of smoothing boar & nylon bristles that grab, smooth & defrizz, while delivering volume & bounce.
- FOR ALL HAIRKIND: Works for all hair types—straight, wavy, curly, and coily. Best on short hair, medium-length hair, and bangs.
- NO HEAT DAMAGE: Attach to the Shark FlexStyle for styling and drying with no heat damage.
- COMPATIBILITY: Compatible only with Shark FlexStyle Air Styling & Drying Systems (HD400's Series).
To check your own kit or replace a missing tool, find the exact model number and compare it with the in-box list or accessory listing. Product names, contents, stock, and compatibility can change.
Quick Recap
Best Value
- Perfect Compatibility: This long curling barrel attachment for Shark FlexStyle HD400 Series Hair Stylers. Please ensure compatibility: NOT COMPATIBLE WITH Shark FlexFusion/Glam/SpeedStyle/Pro/Pro Flex Hair Dryer
- Effortless Auto-Wrap: Create perfect curls with ease using this barrel. Simply place a strand of hair near the barrel and it will automatically wraps, curls and styles. Achieve salon-quality results effortlessly while saving you valuable time
- Dual-Direction Curling: Achieve natural, voluminous curls in any direction! Clockwise and anti-clockwise curls with one barrel, for faster styling for balanced, gorgeous looks. Embraces the beauty endless hair styling choices
- 40mm/1.6inch Barrel: Long curling barrel for Shark flexstyle for looser, bouncy curls and waves. Engineered for shoulder-length and below hair. A must-have attachment that expands the capabilities of your curling iron
- Salon-Quality Results: Achieve long-lasting, frizz-free bouncy curls and waves. The ideal 40mm/1.6inch long barrel attachment creates beautifully defined, glossy hairstyles with ease
Rank #4
- Perfect Seamless Fit For Shark FlexStyle: Exclusively designed as Large Diffuser Attachment compatible with Shark FlexStyle HD400 series, and compatible with Shark FlexStyle IonCurl HD800 series. Please ensure compatibility: NOT COMPATIBLE WITH Shark FlexFusion/SpeedStyle/Pro/Pro Flex
- Larger Size for Save Your Time: This 6 inches large diffuser attachment is not the same as the regular 5.3 inches diffuser. It provides superior airflow compared to standard diffusers, which means faster drying and incredible volume for hair
- Extended Prongs: Reach to the roots and add volume to curly hair of any length, allowing you to achieve professional-looking results in less time
- Salon-Quality Results: Specifically crafted for wavy, curly, and coily hair textures, this diffuser enhances natural curls for defined and bouncy styles, delivering salon-quality results at home
- No Heat Damage: Even drying from root to tip with no heat damage, ensuring healthier and shinier locks with every use
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.




