Broad spring contact; ACME threaded rod; Built-in detent pins to help lock the coil in place; Designed to compress most sizes of MacPherson strut springs; Allows quick compression of the coil spring to replace the shock absorber or spring set; Also allows for repairs on bent struts, strut tubes and damaged pieces; Forged construction for repetitive use; Sold in pairs; Sold in clamshell blister packaging; Shipping Weight - 7.4 lbs