A Prism often has a triangular base, used for dispersing light into a spectrum, and Rave incorporates that design into this quick and nimble "trick" tube that provides all day action! The Prism tube is easily towed by all types of watercraft, and features a low profile design with rear strap for easier boarding. A Skim-fast bottom responds quickly to wakes and waves, creating a dynamic and exciting ride. Quick-connect allows easy and fast connections, and Boston valve lets you inflate the Prism quickly. Constructed from 24-gauge PVC with a durable 420D nylon top and 600D polyester bottom. 340-lb. weight capacity. 60" x 57" x 11".