Spring Gaurd for Ratchet BlocksThe spring guard is an additional accessory which should be paired with ratchet blocks.Its purpose is to reduce wear from the spring on the block and to help the block stand up straight. The spring guard is easily installed by removing the shackle from the block and inserting it over the block swivel post. The shackle can then be reattached, which will hold the spring guard in place. Works best with 50mm and 60mm ratchet blocks.