Spring Loaded Polyurethanes Gate Castor,5 Inch Heavy Duty Furniture Swivel Caster Wheel,Height Adjustable 30/60mm,Load Capacity 220lbs,with 4 Holes Universal Mount Plate Castors (Color : Brake(Side Br

Shock-absorbing spring design: It is made of high-elasticity and non-deformation spring, which has a good shock-absorbing effect. The length of the spring is 0-30mm/0-60mm, which can automatically adjust the height on uneven ground, while ensuring that the door can be opened and closed freely, reducing noise! Heavy-duty casters: 5-inch gate casters are designed with double bearings, which can rotate 360 degrees and are stable and lightweight when pushed. The spring-loaded gate wheel can automatically stretch and buffer, can solve the problem of uneven ground, and has the characteristics of shock resistance and shock absorption. High quality: The gate wheel with spring is made of high-quality steel + polyurethane material, the surface is galvanized, -proof, wear- and pressure-, strong stability, silent, , strong and durable. Easy to install: Heavy-duty universal mounting plate with 4 holes, which can be easily installed on the wooden door or along the horizontal or vertical rail of the tubular courtyard door. Moving casters wheels can be used in homes, schools, garages, shops, trolleys and hospitals. The heavy duty casters can be used to move ottoman, coffee table, plant stands etc.