This single action strut spring compressor is ideal for tire, body and specialty shops, independent garages, dealerships and service stations. It works on MacPherson struts with springs up to 7" in diameter, providing balanced pressure on two sides of the spring for easy repair or replacement of the struts. Works on struts with springs up to 7" diameter Designed specifically for MacPherson struts Use on or off the vehicle Maximum opening: 7" Lead screw torque: 15 ft. lbs Support arms length: 15 1/4". Color may vary.