Square style Combined Shower Head/Hose Holder with Wall Outlet Connection. This is for use with a 'concealed style shower valve.
The holder/outlet is solidly made from brass and chrome. The main body section measures some 5.8cms long. It is 27mm high by 27mm wide.
It comes with securing nut and rubber washer and had a threaded 1/2" BSP Tail (3/4" diameter outside).
The 'exposed' hose connection is a standard 1/2" BSP size also (3/4" diameter).