Application 2pc Coil Spring Compressor For Mac Pherson Struts Shock Absorber Car Garage Tool Function- Lubricate both main shafts with oil- Align the hooks with the safety pins backed off so the hooks will fit over the spring- Position both set of hooks 180° a part, opposite each other- Push safety pins in the lock position on hooks- Using a 3/4"or 19mm socket & ratchet turn the main shaft compressing the strut spring enough to safely remove the fastener nut holding the cartridge Parcel Including 2 x Mac Pherson Struts Spring Compressor Compatible for Case Color: random shipped Warranty: one year warranty for any manufacturing defect