specification: Item Type: Sports Sensor Adhesive Patch_x000D_Material: Cotton _x000D_Size: Approx. 11 x 8cm / 4.3 x 3.1in Features: 1Cotton material manufacturing, natural fiber that has good air permeability, soft touch feelings and good adhesion. 2Designed with adhesive at the bottom of the patch, stick to the skin and not easy to fall off, convenient and durable use. 3Stick it on and do not affect for running, walking, swimming, bathing, you can do your daily activities normally. 4Comfortable, thin and flexible, supporting the body's natural range of motion, wonderful using experience. 5These patches are hypoallergenic and latex free, features the characteristics of mild, safe and non?irritating. PackageList: 1 x Adhesive Patch