Glute ham developer, great for developing strong glutes, low back, ham strings & abs. Adjustable both horizontally and vertically. The Glute-Ham Raise (GH Raise, GHR) is great because it is one of the best movements for the posterior chain - lower back, glutes, hamstrings and calves.ON SALE - $100 off Functionally, it is one of the best hamstring exercises because it trains your hamstring at both joints (knee and hip).This is how your body was designed to work. When you run, jump or squat, your hamstrings are challenged at both joints.Dimensions:Overall footprint (L) 170cm x (W) 76cm x (H) 120cmShortest distance available between knee pads and footplate - 36.5cmLargest distance available between knee pads and footplate - 81cmShortest distance from floor to centre of foot pads - 84cmLargest distance from floor to centre of foot pads - 103cmFootplate - 37cm x 45cmKnee pads - (L) 44cm x (W) 26cm x (H) 27cmEach footpad measures 20cm x 10cm x 10cm Made from 11 gauge steel Max load rating - 150kg (user + weight used)