XMark Universal 14-Gauge Adjustable Leg Curl / Extension Attachment XM-4425 Backed by a LIFETIME in-home warranty, XMark’s Universal 14-Gauge Adjustable Leg Curl/ Extension Attachment has 6 multiple height adjustments and four 8" x 4" contoured roller pads. With full range of motion, lying leg curls and seated leg extensions develop hamstring and quad muscles crucial to balance, speed and coordination. Designed for repeated, long term use, the leg attachment boasts a 200 lb. plate weight capacity for use with Olympic or standard plate weights. The XMark Universal Leg Curl Attachment will fit any standard weight bench having a 2" x 2" receiver that pins front to back. Before purchasing, carefully review the photos to make sure the predrilled holes are in the same direction as your bench. Features: - Backed by a LIFETIME in-home warranty - Can be used with all weight benches having a 2" x 2" receiver that pins front to back - Heavy duty 14-gauge commercial grade construction - 200 lb. maximum plate weight load - 6 multiple height adjustment - For use with standard or Olympic plate weights - 4 oversized 8" x 4" contoured rollers - Baked scratched resistant powder coat finish - Ideal for in-home use