1 The main frame adopts the high-quality steel tube of 50*100mm for use, durable, safe. 2 The sofa adopts the sponge of the high density and imported leather; and makes the user feel comfortable while exercising. 3 Adopt high strength aviation steel cable as transmitting wire and you will feel safe and durable. 4 The steel tube surface adopts the bright paint of metal, and its appearance is beautiful. 5 The weight stack adopts casting iron and safe protect device. 6 Rotating part adopts the high-quality bearing, durable in use and there is no noise while using. 7 The high quality leader makes it smoother while using. G.W. 40kgs n.W. 40ks.