NOTE: you need to know the diameter of your pot shaft.These knobs fit on shaft with a diameter of 6.0 - 6.1 mm.
Very good value for money, I used 4 of those on a self assembled short scale P/J bass for my son, for volume, balance, tone (passive)/trebble cut/boost and bass cut/boost, using an on-board two-band pre-amp from Glockenklang. I specify this as it does not have an active/passive switch, rather you pull/push the volume knob. If the knob wasn't fix properly (e.g., if the bolt got loose), you'd pull it off after a while. Well, it didn't happen so far and I believe it won't happen, this is a +1 about the quality of the part and its assembly.