... PP Mat 3) Durable Spring 4) Max user weight 150kgs Trampoline Features:1) The frame tube made by galvanized steel2) Jumping ... galvanized for inside and outside6) Springs: super high-strength galvanized trampoline includes:1) 6ft., 8ft., 10ft., 12ft., 13ft., 14ft., 15ft. 16fttrampolines ...