HO Sports Striker 4 Person Towable Tube/Raft with Quick-Connect Tow Rope Attachment, Bolstered Individual Seating Compartments Designed for Ease of Use For Children and Smaller Riders

This tube is horrible, 3 major design flaws:The bottom and back bladders do not fill the canvas, even as full as we could get them.The handle bladders all have the old mouth-fill type valves which do not hold air well, even assuming you can get them full (another chore)The canvas has inadequate vents on the bottom so it fills with water making it hard to tow and hard to pull out of the water to deflate, or even add more air!