Skywalker / Bravo / Airzone Trampoline Mat fits 12 ft. Frames that use 72 6.5 inch Springs (SPRINGS NOT INCLUDED) JUMPING MAT ONLY - SPRINGS NOT INCLUDED! Mat Size (Across): 125in V-Ring Quantity: 72 Compatible Spring Size (Springs Not Included): 6.5in Compatible Trampoline Frame Size (Trampoline Not Included): 12 ft