Kids Winter Fleece Beanie for Helmet Use color:Yellow Waterproof & rust-proof

Waterproof & rust-proof

Slow-release Button: release 2-5psi of air pressure per pressHow to set the air pressure unit：mesurement unit will be converted after each press

please make sure your handlebar is suitable for this bells

Function No

store them in layers

Kids Winter Fleece Beanie for Helmet Use color:Yellow Waterproof & rust-proofProduct Details Item Description Product Name Childrens Winter Fleece Beanie Key Features Warm, comfortable, helmet compatible Design Reversible, full ear coverage Outer Material Milk silk (Polyester + Spandex) Inner Material Polar fleece Fit High elasticity, not tight Weight Approx. 29g Size One size Colors Pink Blue Yellow Brown Suitable For Cycling, hiking, skiing, daily wear