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This small 125mm, Caster Swivel Wheel is great for lighter standard applications The wheel encasement is made from strong and sturdy caster steel for an elegant look, with full swivel ability of 360 degrees. It's also equipped with a 4 point bolt fixing plate for super-strong attachment and even weight distribution. The standard use wheel itself is made from thick, black plastic and will have your piece of equipment rolling about easily in no time.