Our Aluminium Cable Pulley Machine Wheels are made from solid aluminium, and include an aluminium centre bush with roller bearings, for an almost silent and smooth rotation. Available to purchase individually, or as an upgrade for some of our Cable Machines. Product Details: Silver aluminium body Aluminium centre bush with roller bearings Aluminium centre is suitable for an M10 bolt Available to purchase and add to; - Rival Wall Mounted or Freestanding Adjustable Free Arm Functional Trainer Pulley System - 105KG Weight Stack - Rival Omni-Series Power Rack with Dual Free Arm Plate Loaded Pulley System