This original 50mm Shepherd metal ball castor comes with a peg and socket fitting. This two-tone shepherd caster features a grey polyurethane tyre over a light brown wheel and is suitable for a range of furniture, beds and sofas, office equipment and small trolleys. The polyurethane tire added to the shepherd castors is kinder to floor surfaces so is more suitable for hard floors. SOCKETS SUPPLIED WITH THESE CASTORS FREE OF CHARGE. Kenrick Shepherd Castor with Peg & Socket Light Brown and Grey 50mm