Thank you for viewing. No comments needed, immediate purchase is possible. A silicone mouthpiece that fits snugly, with a unique wave structure to reduce impact. - Material: Silicone - Case Material: PP - Size: 15mm x 35mm - Fit: Snug fit - Wave Structure: Unique wave structure Easy to wear, no molding required! Effectively prevents nighttime teeth grinding and clenching, supports comfortable sleep, unisex. [Mouthpiece for teeth grinding and clenching]: Teeth grinding and clenching can not only chip, crack, and wear down teeth, but also affect the head, shoulders, and neck. ☆16790100 See the product list here #kenta_happy_profile_reference #gift