WIDE RANGE OF USE: The T-hook tool is a standard type, suitable for most springs. It is used not only for trampoline springs, but also for disassembling and assembling springs for different household machines. COMFORTABLE HANDLE: This spring tension tool trampoline has a plastic handle with a finger groove, which is comfortable to hold and helps reduce hand fatigue and slippage. T-HOOK: The unique T-hook design helps you put the spring into the trampoline frame easily and quickly. HIGH QUALITY: The drawing tool is made of high quality plastic and metal, which is durable, rust and corrosion resistant, which can ensure long-term use. STORAGE SUGGESTIONS: It is an essential tool for trampolines. It is recommended to always put together with the trampoline parts.