Beach invisible non-slip insole sole stickers summer invisible shoe stickers anti-cut anti-slip stickers heat-proof and waterproof Material: Silicone with specific hypoallergenic certified adhesive Approximate size: S: 32-35cm Length: 21.5CM M: 36-39cm Length: 23CM Length: 40-43cm Length: 24.5CM XL: 44-47cm Length: 26CM feature: UNIQUE DESIGN: This beach mat is waterproof, cut-resistant, non-slip and warm and comfortable Suitable for most occasions: such as swimming, beach volleyball, spa, surfing, grass walking, beach walking, sand walking, yoga, running, boating, kayaking, windsurfing, water sports Portable: They are small in size and light in weight, easy to carry and easy to store, you can enjoy them anytime and anywhere Great Gift: Great gift for women and kids, such as lover, wife, fiancee, girlfriend, mom, daughter, your friend, even yourself How to use it: 1. Sit down and wash your feet 2. Tear off the release paper on the toe part first, be careful not to tear off all at once 3. Stretch out the toes, stick the thumb first, then stick the other toes, do not wrinkle. Press down on the curvature of the toes 4. Pinch the end of the foot pad and tear off all the release paper, stick it on the heel first, then flatten the midfoot and arch 5. If there is a little wrinkle, tear off the unattached part and re-level it. Do not leave any ungummed parts pack: 3 pairs