KNOBS

137-138

 METAL

Bushing / Screw / Dual / Pear type

139-140

 PLASTIC

 Bell / Speed / ST etc..

141

 WOOD

 Walnut, Maple, Bubinga, Rosewood, Ebony

 

KN005 ( fit to USA-24 SERRATION ) PLASTIC KNOBS

 

  BN ( Black Nickel) Knob