DESIGN & DETAILS: Duratube is a reinforced commercial grade tire tube for all of your snow sledding and water tubing adventures The ultra durable design is great for any season, hit the slopes in the winter for snow sledding action and cool off floating at the lake during summer The GoSports Duratube features a reinforced design that is tear resistant for maximum fun Our GoSports no poke inflation valve also works with any standard tire pump and is designed to stay out of your way while riding for maximum comfort and enjoyment