1. Silicone gel material, easy to stick and tear, tear off without trace, simple operation 2. Waterproof and sweatproof, not easy to fall off 3. High elasticity soft film, comfortable touch, breathable and not stuffy 4. Material: silicone gel 5. Weight: about 1.5g/piece 6. Size: small about 7 x 4.5cm/piece, large about 8 x 5.3cm/piece, square about 8 x 5cm/piece
