This Maxicam Lower Back Weight Machine features pre-stretch range adjuster on cam, outstanding lower back strengthening, precision EZ glide seat and solid steel, precision weight stack. It has foot platform for different user' leg lengths and helps to encourage proper posture and increase exercise efficiency. It is fabricated solely from rugged 2 x 2 and 2 x 3 inch, 120 structural rolled steel tubing. The seat height adjustment by a spring loaded pop pin. It comes in powder coating finish that is much more durable and resistant to unfavorable conditions - including weather, salt, humidity, and chipping. This technique also eliminates sags and drips while uniformly coating edges, corners, stamping and other projections. This Lower Back Weight Machine also features luxurious prime-grade vinyl upholstery material. The seat is fabricated from top-grade plywood. Its upper surface is fully padded with 2 inch thick of high density resilient, comfortable polyfoam. It comes with 3/16 inch mil-spec nylon-coated aircraft sleek black cable and 30 degree deep grove fiberglass-reinforced nylon pulley wheels to ensure ideal cable support. Friction-free precision ball bearings provide years worth of worry-free whisper smooth operation. It has special closed-cell foam handle grips. In addition to being extremely comfortable, it is virtually wear-proof. It features case-hardened steel alloy guide rods which, in combination with special linear bearings provide ultra-smooth action and extremely minimal wear.