This is a 380cm diameter replacement trampoline jumping mat. This mat is made of permatron, and is designed to fit 4.3m round trampoline frames. This mat has 96 steel v-rings around it, so your trampoline should have 96 springs with it. This trampoline is designed to fit trampolines that use 14cm springs. Your trampoline must have a 4.3m round frame, and use 96 14cm springs or this mat will not fit your trampoline.