This lot of 10 trampoline springs is a heavy-duty steel replacement part perfect for both indoor and outdoor use. Each spring is 5.5 inches in length and made of durable steel, providing stability and support for your trampoline. Ideal for gym and training activities, these springs are a practical and reliable choice for enhancing your fitness routine at home. With no personalization or vintage style, these springs offer a simple and efficient solution for maintaining and improving your trampoline's performance.