Coffing CBT trolley features steel wrap around side plates, dual tread wheels and lifetime lubricated shielded ball bearings. Versatile, economical, and reliable; this smooth rolling trolley is the economical choice for most applications. FOB Shipping Point. - Excellent low cost choice for manual and powered hoists. - Designed to provide superior performance and long, efficient service. - Low rolling effort. - Universal hanging clevis accepts most hook-mounted hoists. - Trolley easily adjusts to fit any beam flange within range of adjustment. - Wrap-around side plates for increased safety. - Permanently lubricated wheels fit either tapered or flat beam flange within range of adjustment. Also available in geared configurations with capacities up to 5 tons.