Our trampoline springs and spring puller tool are ideal for keeping your trampoline safe and functional. The waist drum springs offer bounce and durability, making them ideal for trampolines. To use, simply attach the springs to the trampoline frame and mat with the spring puller tool. This ensures a secure and tight fit, allowing for consistent performance and safe jumping experiences for all users. Features -Color:Silver -Material:Steel wire; plastic -Size:13.50X2.20X2.20cm/5.31X0.86X0.86in -Easy setup: the spring hook design makes the installation and removal process quick and easy, allowing you to enjoy your trampoline without hassle - elasticity: stable springs offer excellent bounce and comfort, enhancing your overall trampoline experience -Durable and reliable: these waist drum springs are specifically designed for trampolines, ensuring stability and durability -Versatile use: suitable for both indoor and outdoor settings, these springs cater to all your trampoline needs, providing fun in any environment -Safety features: the secure attachment of springs and hooks ensures jumping experience, giving you peace of mind Package list: 8 x springs (length 13.5cm) 1 x trampoline spring hook