Model: B type of Linear Potentiometers, Can be used in Dimming Tuning Body Size:45*9mm(+/-2mm)(L*W )Shaft Size: 15*4mm (L* W) Feature: Linear potentiometer, the resistance has been changing linearly during the pushing process Resistance Value: 100K ohm, Tolerance: +/-10% Suitable for mixer, electronic guitar, etc. Mainly use to adjust the volume, tone, balance and light etc.