Rectangle Trampoline Mat For 10x17 Upper Bounce Trampoline Exact length of trampoline mat is 98.5" x 186" Amount of V-Rings: 108 Spring Configuration: 18 Springs on Short Side 34 Springs on Long Side 4 Corner Springs Uses 7" Springs (Springs Not Included) Picture shows what the angled edge looks like Fits Models UBRTG01-1017 & UB03EC-1017E Grade A Polyproylene Hem With 4 Row of UV Treated Thread Comes With Blue Sunguard & Spring Tool