I have the following knobs for the DX-40. 2-Large, with pointers...$6.00/each 2-Small...$4.00/each 1-Very Small ( red )...$3.00. $20.00 plus shiping gets them all. No chips or cracks. Regards Gary...WZ1M http://Tubes_Tubes_Tubes.tripod.com/tubestubestubes/index.html http://Tubes_Tubes_Tubes.tripod.com/