Features: 1.Mainly constructed of stable metal material, durable and wear resistant. 2.With a small wrench, easy to install and use. 3.Pure black colored and anti-slip textured coating surface, good-looking and easy matched for your instrument in color. 4.Compatible with most for TL Electric Guitar, for JB / PB Electric Bass. 5.Wonderful replacements for your dirt or old plastic knob. specification: Mainly constructed of stable metal material, durable and wear resistant. With a small wrench, easy to install and use. Pure black colored and anti-slip textured coating surface, good-looking and easy matched for your instrument in color. Compatible with most for TL Electric Guitar, for JB / PB Electric Bass. Wonderful replacements for your dirt or old plastic knob. : Condition: 100% Brand New and High Quality Material: Metal Color: Black Quantity: 4 Pcs Knob + 1 Pc Wrench Fit for: Most for TL Electric Guitar, for JB/PB Electric Bass Height: Approx. 19 mm / 0.75 inch Outer Diameter: Approx. 18.5 mm / 0.73 inch Packing List: 4 x Metal Guitar Bass Knob 1 x Wrench Note: There may be a little unavoidable scratches on its surface coating, but will not affect its normal use. Please make sure you do not mind before you bid. We appreciate for your understanding. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.