Ergonomic handle with finger grooves for a secure, comfortable grip and reduced slipping during use. Construction and materials Trampoline spring tool made of metal for durability Handle crafted from PP plastic One piece design with the iron hook for a sturdy, integrated tool Size and portability Total length 13.5 cm Width 11.7 cm Light weight and compact, easy to carry Ideal for outdoor trampolines and travel installations How it works Hang the double hook spring on one corner of the trampoline Attach the other end to the trampoline tensioner using the T shaped hook Benefits and use scenarios Quick assembly and tensioning of trampoline springs at outdoor locations such as backyards, parks, or campsites Convenient for replacing springs or re tensioning a portable trampoline during travel Suitable for routine maintenance tasks that involve handling trampoline springs and tensioners Key attributes Function: enables secure, efficient attachment of double hook springs to trampoline tensioners Compatibility: designed for use with double hook springs and T shaped hook tensioners Size: compact and portable; 13.5 cm length, 11.7 cm width Material: metal spring tool; PP plastic handle; one piece with iron hook Performance: durable construction supports repeated use with reliable grip and minimal slipping