This Harmony RXZ maintaining clamp has a plastic body. It is compatible with socket RXZ with 2 C/O, 3 C/O and 4 C/O. This mounting accessory is ideal to secure the relay socket in place. It can be matched with any relay socket from RXZ range. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0