HAHIYO Black Surface White Number Clear Electric Guitar Top Hat Knobs Smooth Quick Change Speed Volume Tone Control Electric Bas

Material: High quality plastic Color: Black Quantity: 4 Pcs Size: Inner diameter 5.8mm The numbers are clear so they are easy to read.The correct numbers in the correct order,they are the right spline count.When pulling-up on,they slide on snugly and firmly.Smooth and quick to change volume and tone.The plastic is very clear,they are scratch resistant.A beautiful addition to your bass guitar.