KITO's TS series trolleys have bumpers, which hold the trolley surely on the beam and guard against damage to a trolley and wheels arising from a collision with the stopper or between two trolleys. Buffers are available as an option to install on the bumpers. Also, extended arms are available as an option to install on the bumpers to help prevent damage to a hoist from collision between the hoists suspended from trolleys on the same beam. Trolleys are adjustable for various widths of both tapered and flat flanges by changing the adjusting spacers.