The Spears 820-020 PVC Schedule 80 Cross, Socket, 2-Inch is a socket cross made of PVC. It is 2-inch in diameter and has a socket on one end and a crossbar on the other. This cross is perfect for use as a signpost or as a decoration. The Spears 820-020 PVC Schedule 80 Cross, Socket, 2-Inch is a socket cross made of PVC. It is 2-inch in diameter and has a socket on one end and a crossbar on the other. This cross is perfect for use as a signpost or as a decoration.