4x22LBS Pilates Reformer Springs: come with 4 pcs springs with a tension value of 22lbs meet your different workout needs 22 LBS High Resistance: Pilates reformer springs with a tension value of 22lbs resistant to pulling and have high resilience, which can withstand high-intensity exercises. 10000+ Durability Tests: The Pilates equipment spring is made of one-piece high manganese steel last for years Easy to Install and Disassemble: The Pilates spring adopts a self-contained hook design, which is easy to install and disassemble. 13.58 Inches Long: The Replacing springs suitable for most Pilates Reformer equipment can provide greater resistance and improve the performance of your device 4 PCS Pilates Reformer Springs, 22LBS Tension Replacing Springs for Pilates Reformer Accessories. Pilates springs are 13.58 inches long made of manganese steel, which has high toughness and good tensile strength, a great choice for Replacing Springs of Pilates Reformer. The Pilates spring adopts a self-contained hook design, which is easy to install and disassemble. You just need to hang it on the Pilates bed spring column to use it, no need to worry about the difficulty of installation and removal