Material: Food grade quality silicone, healthy and odorlessGreat snorkel mouthpiece,fits for most any regulator and snorkels.Features: Easy to install, fits most regulators and snorkels, to reduce jaw fatigue.Drag the tongue design, Suitable for scuba diving, snorkeling, spearfishing, swimming and etc.Perfect replacement for scuba diving snorkeling snorkel. High quality, soft silicone, comfortable and durable. and high quality.Type:Diving Bite MouthpieceIntended for: AdultIntended for Euqipment: Breath Tube, Second Stage etcColour:blackMaterial:Silica gelPackage Contents:1 x Diving Snorkeling MouthpieceOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.