Description: Used to protect your mouth and teeth during boxing training, football basketball rugby competitions, etc. Latex material can be environmentally friendly, non-toxic and odorless, no harm to your health. Before use the mouth guard, please place it in the boiling water for a few seconds for disinfection. Specification: Item Type: Mouth Guard Material: silicone + plastic Structure: Double-Sided Application: Boxing, Martial Arts, Football Basketball Rugby Competition, etc. Color: White(Transparent) Braces: approx. 2.28*2.36*1.18 inch/5.8*6*3 cm Case: approx. 2.48*2.36*1.38inch/6.3*6*3.5cm Fitting Guard: 1.Have a container of cold water ready, last to pot of boiling water. Immerse mouth guard completely in boiling water for 35 seconds. 2.Remove mouthguard from boiling water, and dip into cold water for an INSTANT. Remove quickly and place over upper teeth. 3.With mouthguard in proper position, immediately place tongue against roof of mouth, and with strong sucking motion, suck out all excess water and air. 4.Bite LIGHTLY with back teeth. 5.Remove carefully from mouth and put into cold water. 6.After mouth guard is chilled, check fit. If tighter fit is desired, simply remold by following steps 1 to 5.