We carry both Water Trampolines and Water Bouncers so it's important to remember these are very different. Water Trampolines have springs attaching the mat to the tube, and let the user catch a lot of air. They also require assembly. Water Bouncers do not have springs, the mat is attached directly to the tube, so they provide more of a "bounce" and are easier to set up. Need help deciding? Here's a video comparing the two!