The GCBT380 Body Solid Plate-Loaded Dual Action Biceps/Triceps Machine offers two machines in one for the upper arms. An adjustable height seat assures correct posture for all types of users. The pivot arm is adjustable through a full range of motion to accommodate the two opposing starting positions required for both arm curls and triceps extensions. Thick padding and a V-Bar handle add to the comfort of this machine. (Plates sold separately)