The trainer is designed for training the back muscles Specifications Plates: 14 x 10 kg and 6 x 2.5 kg Dimensions: length 1420 mm x width 2080 mm x height 2050 mm Weight: 335 kg Muscles: Back, Biceps, Rear Shoulders Frame: Steel, zink primer with powder coating plus extra clear coating finish Rails: Stainless Steel Small Parts: Stainless Steel