Castor Wheels 4 x 6" 150mm Swivel Silent Caster 2 Brakes 800KGCastor Wheels 4 x 6" 150mm Swivel Silent Caster 2 Brakes 800KG If you have an immovable object that you want to move, our heavy duty castor wheels are the perfect solution. These wheels can effortlessly transport up to 800kg from point A to point B and are even strong enough to move a horse. Once you bolt these wheels in place, you can forget about them. Made with galvanized steel and high precision ball bearings, they ensure a smooth and reliable