Extender to lengthen key or 2-3/4" turntable. One end screws onto winding post and the other end screws into a key or turntable. This solid brass extension has a male thread at one end and a female thread at the other end. Only fits winding key post, key and 2-3/4" turntable. Two lengths available, 1/2 or 1-1/2 inch.