The Gage Hardware kit perfectly complements the BarnCraft Collection of rolling barn doors. Barn Door Hardware Kits includes the rollers, pre-drilled rail, stoppers, screws & nuts, anti-jump disc, C floor glider and installation guide. The hardware glides quietly and smoothly with ball Bearing Wheels made of high durometer nylon.Hand made of high quality powder coated steel in black finish. Weight Capacity: 220 lbs. For Interior Use Only.