Dopro Set of 3 Red Brass Insert USA Spec 1/4" Jazz J Bass Knobs

Brass insert with set screw; Fits USA Size 1/4"(6.35mm) diameter Pots 2x Large Knobs dimension: 23.4mm(base diameter) x 17.2(top diameter) x 15.5(height) (Please confirm the dimension carefully before you order the item) 1x Small Knob dimension: 20.2mm(base diameter) x 15(top diameter) x 11.5(height) (Please confirm the dimension carefully before you order the item) Please note these are not original Jazz Bass Knobs,so the dimensions are a little different with original Jazz Bass Knobs; Please be sure to verify the dimensions before you order the item