The commercial dual series is designed for hotels, schools, PT studios and is backed by a commercial 1 year parts warranty in a non-fee paying commercial environment. Primal Strength Commercial Dual Arm Cable Pulley comes with: 2x90kg Individual stacks Multi-Height Adjustable Arms Full Range Arm Motion Matte Black Powder Coated Brass Bushings. Each arm has 11 vertical positions and 6 horizontal positions and can rotate a full 90 degree horizontally and 180 degree vertically. 2x90kg, Individual stacks – 2:1 Ratio Multi-Height Adjustable Arms Full Range Arm Motion Matte Black Powder Coated Brass Bushings 1000kg Rated Cables