Intex Monster Truck Swim Tube, 45" Diameter, for Ages 9+ Designed to mimic a truck tire with a tread and sidewall, this fun tire tube is a cruiser Sturdy and durable, the tube is constructed with 2 air chambers for added safety, and two heavy-duty grab handles Age grade: 9+ years; Dimensions: 45" diameter Includes: Two air chambers; Two heavy-duty grab handles; Repair patch