Features: Using medical-grade EVA-material, it has good water resistance, shock resistance, and cushioning performance. Reusable. The concave convex-design at the bottom effectively prevents slipping caused by external impact. Thickened base design, better fitting to the mouth, wear-resistant, and comfortable to wear. The breathable groove-design allows for free breathing and comfort. Suitable for various scenarios: Suitable for use in intenses sports competitions, such as boxing, football, basketball, football, ice hockey, hockey, etc. It can also prevent tooth grinding. Specifications: Material: Food grade EVA-Material Color: Transparent-White/Black/Sky-Blue/Orange/Fluorescent Yellow Size: As shown in the picture Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Teeth Mouth Guard