Description: REPLACEMENT: made, high quality guitar knob a great replacement for your damaged, dirty or old control knobs. QUALITY: Made of metal and plastic material, high quality and durable. BORE SIZE:Mounting bore is approximately 0.6cm/0.24" in diameter, a mating knob with a knurled edge; designed for standard 0.6CM split axle pots. FEATURES: The clear design magnifies the figures and they can be seen from any angle. CONVENIENT: Simple and convenient to use and install, giving your guitar a vintage look and making it stand out. Specification: Material: Metal + ABS Size Chart: Upper DiameterxBottom DiameterxHeight: Approx.2.1cmx2.5cmx1.5cm/0.83inchx0.98inchx0.59inch Aperture: Approx.0.6cm/0.24inch Package Includes: 4Guitar knob Note: Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement.