Introducing a new product in the popular SISU sports mouthguard. SISU Sports Mouth Guards are known for their unmatched defense and comfort. 3D (3D type) that was thought impossible with the same material. ★ STRENGTH SISU mouthguard adopts unique Diffusix technology, made from high-tech thermoplastic material that is 30% stronger than conventional mouthguard materials, and has an even greater tensile strength of 8 times. Provides excellent protection for your teeth and gums from strong sports impacts. Athletes believe that SISU Mouth Guard will protect their opponent no matter how strong they are hitting their competition. ★ COMFORTABLE: Unlike large and thick mouth guards, the SISU mouth guard is ultra thin and super light! 2.4mm thick for protection and 1.6mm thin for comfort ★ Hygienic SISU mouthguard fit makes it easy for athletes to remove the mouthguard during games. This means less chance for bacteria to transfer from dirty hands to mouthguard and less risk of infection. ★ Faster teeth shaping and 3D shape makes it easier and faster to get the teeth shape! Simply insert the upper tooth into the U-shaped groove, press it down with your finger to remove the tooth shape. Recommended for ages 7 and up (Height: 59.1 - 70.9 inches (150 - 180 cm)); Note: Please do not use this product if applicable to the following people. There are wobbly teeth Teeth, gums, and jaw joints Teeth with hardware, teeth with metal filling, and braces (metal may not get removed when removing the teeth shape). [Important] Due to the nature of this product, we accept returns for the convenience of the customer after delivery. Thank you for your understanding.