Snorkels without valve

Snorkel material: silicone, flexible and softMaterial mouthpiece: hypoallergenic siliconeMouthpiece shape: without soft palatedry valve: noBlow out valve: noMask holder: yessnorkel shape: slightly curved, shortConstruction: with built-in collapsible tubeSpecial features: can be rolled up to be stored in the jacket pocket, light and break-proof