ROADINGER Swivel Castor 100mm BLUE WHEEL with brake is a steel, zinc-plated swivel castor with a light-blue wheel and a double-action brake operating on both the wheel and swivel. It features a double ball race, roller race hub bearing and a replaceable bolt-on wheel. The castor has a height of 12.8 cm and a diameter of 10 cm. Its carrying capacity is 450 kg per set of four castors, and it is made in Germany.