[REUSABLE MATERIAL]it make take several times of reheating to get it to fit right. But it can be remold over and over again. When you can use it proficiently, you will find it's very practical and convenient. [LIGHTWEIGHT and BREATHABILITY] Only 1.6mm, it's not thick like other mouth guard, and the small holes allow you to talk, drink, and spar freely without ever having to take out the mouthpiece. [ANTI GAG]Do mouthguards sometimes make you gag? We've ensured that our gum shields 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, sanda 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:Purple Material:EVA Package Contents: 2 x mouthguard Only the above package content, other products are not included. Note: Light reflection 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.