Oriel 43CM Black Cotton Lamp Shade OnlyThis 43cm cotton hardback shade is ideally suited for a floor lamp or large table lamp base. The 43cm shade ring suits an E27 lampholder, but can be reduced to suit a B22 lampholder using our shade adapter ring. Most of our loose lamp shades are supplied with a SHADE ADAPTER RING allowing it to be used with both BAYONET (B22) and Edison Screw (E27) lampholders. The shade adapter ring (OLA16 SHADE) is a plastic ring which fits inside the 43mm opening