Carlisle Brass Taylor Spindle 8 x 26 x 29.5mm (T x Dia x L) Polished Brass is used for the handle or knob on one side of the door. It is also known as a dummy spindle where only one knob or handle is used and not required to be turned. It is screwed to the face of the fixing surface and the knob or handle fixed over it. The base diameter measures about 26mm and is ideally used in conjunction with the roller ball latch. Corrosion resistant. High strength and machinability. Finish prevents tarnishing.