Element Fitness Glute Ham Developer (GHD) Machine SKU: 3583 COMMERICAL GYM$649. 00 Save $350 Regular price $999. 00 Element Fitness Glute Ham Developer GHD51 A machine that tortures your glutes and hamstrings? Yes this is that machine! Great for developing strong glutes, low back, ham strings & abs! Functionally, it is one of the best hamstring exercises because it trains your hamstring at both joints (knee and hip). When you run, jump or squat, your hamstrings are challenged at both joints, so it makes sense to strengthen