This 50mm Shepherd Ball Metal Castor has a peg stem with a socket fitting ideal for fitting into wooden legs. The nickel finish gives the castor an elegant, silver appearance and is a traditional castor for a range of furniture, beds, sofas, office equipment and small trolleys. These high-load furniture castors are a perfect replacement for broken castors on furniture. Kenrick Shepherd Castor with Peg & Socket Silver 50mm