The JumpKing 15 ft. Trampoline Weather Cover is a great way to protect your trampoline from the elements when not in use. Weather cover design has attachable hooks for hooking onto the V-rings. Weather cover is designed to fit most round trampoline frames. Weather cover is made from durable polyethylene material. Drain holes keep water from pooling on top of the trampoline and also reduce ice from forming in winter.