1、Made of good‑quality acrylic material, come with excellent durability and durability, very practical 2、Top hat knobs with embossed numbers 0‑10, give your guitar a retro look and make it stand out, easy to adjust 3、The product is suitable for guitar bass and amplifier replacement, high quality and durable 4、This is an excellent replacement of guitar parts to replace damaged, dirty or old volume tone control knobs 5、Volume tone control knob is easy to install, well tested, suitable for as potentiometer hat, very useful 4 x Top Hat Knobs Item Type: Top Hat KnobsMaterial: AcrylicColor: Gold + blackProduct Size: Small Diameter: Approx. 25.2mm / 1in, Large Diameter: Approx. 26.2mm / 1inInstallation Size: Corresponding to the potentiometer installation inner hole diameter approx. 6mm / 0.2in(that is, the corresponding potentiometer installation part diameter is 6mm)