Stainless Steel Track King Size Nylon Trolley Bearings with Stainless Steel Balls Smooth Die-Cast Aluminum Yokes and Hanger Sections 2 Manual Switches Standard One Toggle Switch and One Foot Switch or Two of Either Available in L-Shape, T-Shape, U-Shape, and E-Shape Overall Height 6'4" Overall Width 52" 10 Order Slots per Foot Advanced Design Choice of Colors (see specs) Expandable - Add Any Length Dependability - Fully Warranted