grand master trampoline

1 .The main bed frame is made of special steel round pipe, with a specfication  of 5.2mx3.05mx1.15m.

2.The mesh size is 4.26mx2.13m, and the material is nylon.

3.The spring system consists of 11 Opes conventional springs and 8pcs rein forced springs. The length of the conven tional spring
is 258mm and the diameter is 29mm, while the length of the reinforcing spring is 258mm and the diameter is 39mm.