[REUSABLE MATERIAL]it make take several times of reheating to to fit right. But it can be remold over and over again. When you can use it proficiently, you 's very practical and convenient. [ and BREATHABILITY] Only 1.6mm, it's not thick like other mouth guard, and the small holes allow you to talk, drink, and freely without ever having to take out the mouthpiece. [ANTI GAG]Do mouthguards sometimes make you gag? We've ensured that our have an ultra-slim profile on the inside of the mouth ensuring minimum interference whilst playing sport.Crumple zones can absorb impact forces, optimized performation pattern for maximum comfort and protection [Applicable occasions]Can be applied in taekwondo, football, basketball, boxing, skating, and other competitive sports, sports mouth guard can effectively protect teeth and mouth, suitable for sports enthusiasts and athletes to use. [1 SIZES]Medium for Adult up to 5-6' tall(150-180cm), Age 10years+ Colour:black Material:EVA Package Contents: 1 x mouthguard Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 111 hours Hope you have a pleasant shopping experience!