2 Pack 4" Spring Loaded Gate Caster with Brake, 220 lbs Heavy Duty Retractable Swivel Gate Casters with Universal Mount Plate, Rubber Gate Caster Wheels for Residential, Farm, Factory Gates

2 Pack 4" spring loaded gate caster has 220 lbs maximum load capacity for each gate caster, it has a hidden spring loaded design, which can automatically adjust the height when you open or close the gate on uneven ground. And the built-in spring loaded design help the spring provides a long service life, and make the gate caster looks more beautiful. The 360° rotation top plate can let you easily turn to the directions you want. The etractable swivel gates caster works well on both level and uneven surfaces like concrete, brick, asphalt, grass, gravel or pavers. and the universal mounting plate make it suitable with differnet kind of gates