Description: 100% new and high quality! Special design mouthpiece to reduce jaw fatigue and increases comfort. Fits your bite pattern exactly. Regulator/snorkel can hang in your mouth without biting down the mouthpiece tabs. It can be applied for deep-diving , free diving equipment, fits most standard regulators. If there are a little loose, you can use the given tie belt to tie, prevent water leakage. Can be easy and repeatedly to shape. Specifications: Material: TPE Size (L x W): Approx. 7x5x2.5cm Color: Blue, Black, White, Pink. Suitable: For adults. Quantity: 1 Pc. Instruction: Just dip the mouthpiece in hot water using the supplied handle, then briefly cool and place into your mouth in the proper orientation. Bite down softly for a good fit of your bite pattern. Package includes: 1pc x Diving Mouthpiece (with Tie Wrap) Notes: Transition: 1cm=10mm=0.39inch 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3cm measuring deviation due to manual measurement. We usually ship orders in 48 hours when payment is verified. If you have any problems about the order, please justcontact us. We try our best to help!