1. Material: silicone
2. Skin-friendly and soft, comfortable to use
3. Adjustable size, easy to wear
4. Easy to clean design, not easy to leave stains
5. With 3D leak-proof groove at the bottom, large diameter
6. Folding without traces, not easy to deform, travel storage does not take up space
7. Size: 23x32cm
8. Weight: about 80 grams