Description :Are you looking for a professional, yet affordable wheel caster Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once If yes, look no further Our professional wheel caster must meet you needs. It is one of the best choices for you.Features- Color: Silver. Size: 28 x 10 x 10 cm. Material: Metal and rubber. 4 inch Gate Caster with Adjustable Spring Bracket is designed to allow gates to open and close freely. It features a 50-60kg load rating and a spring-loaded clamp that acts as a when the caster is rolling over rough or uneven surfaces. It also features a universal mount for wood or metal gates. Heavy Duty spring-loaded gate casters adjust with surrounding terrain to maintain gate height throughout the opening and closing cycles. These rotating supports work equally well on level and uneven exterior surfaces such as asphalt, brick, concrete, dirt, grass, gravel and pavers.