Premium Material: Made of galvanised iron and plastic, sturdy and durable, not easy to rust. Smooth and burr-free surface, glossy and easy to grip. Easy to Use: The T-hook is evenly stressed and it helps you to save energy by easily sliding the springs into the trampoline frame. It is safe, firm and stable to use. Ergonomic Design: The handle is designed with finger grooves for added comfort. Simple to operate and easy to use. Easy to Carry: T-shaped spring hook weigth 75g, lightweight, easy to store, carry and can be carried in an outdoor backpack. Perfect for outdoor trips and when setting up a trampoline. Compatibility: T-spring hook: 13.6 x 11.7 cm. Can be used on trampolines, tents or anywhere else where springs need to be stretched. Features: T-Hooks are standard and fit most strength springs, giving you plenty of grip. The spring tension tool allows you to install easily and safely, and is an essential tool for trampoline assembly. Specifications: Quantity: 2pcs Matrerial: Plastic, Galvanized Material Size: 13.6 x 11.7cm Colour: Black Weigth: 75g Package includes: 2 x Trampoline Spring Pull Tool