Body Solid GLCE365 Leg Extension / Curl The Body Solid Leg Extension / Curl allows you to tackle the high priority exercises that trainers, bodybuilders and coaches want to do, those being leg extensions and leg curls. These exercises define the front and back of the leg. They strengthen the knees, hamstrings, quadriceps, and glutes. They also serve to protect the knee and joints from stress and injury. Body-Solid Leg Extension & Curl Machines are engineered with the user in mind. They adjust to fit your body comfortably and position you for optimum exercise posture. Specifications Assembled Weight: 42kg Assembled Dimensions: 140cm (L) x 68.6cm (W) x 122cm (H) Weight plate post is 1" diameter Olympic Adapter Sleeve, weight plates, and collars optional. Warranty LIFETIME: Frame & Welds LIFETIME: Pulleys, Bushings, Bearings, Hardware, Plates, Guide Rods LIFETIME: Cables, Upholstery, Grips (Normal Wear)