Upper Bounce Trampoline Replacement Band Jumping Mat. Round Flat Tube Frames (Clips Not included) Trampoline Frame size:Made for a 12 FT. Round Band Trampoline (for your trampoline size: measure frame from one outside edge vertically and horizontally to the other outside edge, make sure to measure it both ways to confirm your size) Amount of Bands: 73 Amount of clips needed: 73 (Clips are sold separately) No sharp spring hooks make it safer and easier to assemble Material:Heavy Duty Premium Polypropylene Mesh Material has 8 row stitching which provides extra security that prevents the mat from tearing and guaranteed to enjoy for many years! ATTENTION: THIS JUMPING MAT WILL NOT WORK WITH A TRAMPOLINE FRAME THAT IS USING SPRINGS.