Jumping Surface for 12' Trampolines with 80 V-Rings Spring Size: 8.5" BRAND NEW Replacement JUMPKING 12' Trampoline Jumping Surface with 80 V-Rings for 8.5" Springs (Springs are not Included) This trampoline Bed (Jumping Surface) is for use on a 12ft Trampoline with 80 Springs that are 8.5 inch in size. Amount of V-Loops: 80 (Galvanized Steel) V-Rings for Springs Springs Size (NOT INCLUDED): Made For Springs Size 8.5 Inches Color: Black