Select Hardware Spring-Loaded Swivel Gate Roller, 4" Heavy Duty Wheel, Black HEAVY DUTY DURABLE - 125lb weight capacity per roller; Our gate roller is designed to support the weight of wide metal and wooden gates, as well as garage doors weighing up to 125lbs. IDEAL FOR UNEVEN SURFACES - The roller is mounted on a spring that allows the wheel height to automatically adjust when rolling over uneven ground, keeping the gate at an even height. 360° SWIVEL - With a 360-degree swivel design, for use on left or right-hung gates; It allows the roller to move and rotate in all directions and over unsteady terrain. EASY TO INSTALL - It comes with 2 pre-drilled mounting holes so you can quickly and easily attach it to your gate/door. DIMENSIONS - 101mm rubber wheel, 145mm rod, 94mm fixed spring section, 51mm absorption movement. HEAVY DUTY DURABLE - 125lb weight capacity per roller; Our gate roller is designed to support the weight of wide metal and wooden gates, as well as garage doors weighing up to 125lbs. IDEAL FOR UNEVEN SURFACES - The roller is mounted on a spring that allows the wheel height to automatically adjust when rolling over uneven ground, keeping the gate at an even height.