brand new and high quality Features: The perfect solution for teeth grinding mouth guard for sleep. It is important that they stay in place and remain as unnoticeable as possible. The night mouth guards for teeth grinding provide a cushioned barrier between your teeth which stops grinding and clenching while you rest easy. Made of comfortable and lightweight materials.It is non-toxic and harmless to the human body, and the material is environmentally friendly and safe. The mouth guard is made of a thermoplastic material, you can customize the appropriate mouth guard yourself. Excess parts can be trimmed with scissors. Lightweight, and provide adequate thickness and support to prevent you from grinding your teeth. stabilizing for maximum for protection. Specification: Material: EVA Color: Transparent Package Size:app. 10 x 5 x 3cm / 3.93 x 1.96 x 1.18in Quantity: 1set(6pcs) Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-2cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1set(6pcs) x Teeth Whitening Trays(other accessories demo in the picture is not included.)