Brand new for 2010, the TP 8ft budget Trampoline Mat cover is designed to be used when a Bounce Surround trampoline enclosure is already in place. The plastic cover has drainage holes to ensure that water drains through rather than sitting on the trampoline. Velcro straps attach the trampoline coverto the galvanised upright poles of the Bounce Surround enclosure, to ensure that your trampoline is kept leaf / debris free and ready for action! 1 year guarantee