Type: Sports braces Material:Food grade EVA Non-toxic and odorless Size:Tooth Protector:6.5*5.5 *2cm Box:7*8.5*3cm Color: White, Red Package includes:1 * Sports braces includes box Features: High density structure, firm and soft heating snap-in design, more fit users' teeth shape and the mouth guard can reach the rear molars, to provide complete protection. Groove adjust teeth surface, convenient to keep breathing smooth It will not affect the protective effect of teeth during strenuous exercise. Great for Boxing, Kicking, MMA, Fighting, Boxing,Sanda, TaekwondFirefighting, Jiu-Jitsu and other vigorous exercises Note 1. Product batches different / different computer display colors different, there will be a little color different, Which is normal, please kindly note and understand 2. Please allow 1-2cm measure errors. How to cook ? 1. Wash the new tray blank with soap to wash off the chemical. factory elements 2. Dip into boiling water and wait 30 seconds, checking all the time if your mouth guard will soften a little earlier, or a little later 3. Put on the upper jaw, and smooth the silicone up under the lips. 4. Bite lightly 5. Align up again 6. The capa is ready 3-5 points should be done quickly, while the mouthguard remains soft. If the burl has hardened, BUT has not acquired the shape you want, you can re-cook and shape it. Also, if the right edge of the mouthguard already suits you, you can only cook unformed edge of the mouth guard.