Features: Made from durable ABS material, they feature a hat-shaped design that adds style and functionality to your instrument. They're easy to install and compatible with most standard-sized knobs. With smooth and positive rotation. Perfect for electric guitars, it can replace damaged, dirty or old control knobs. With their stylish design and practical function, these volume knob caps make a great gift for any electric guitar player. They're great for use in a variety of settings, from gigs to studio recording and home practice. Specifications: Material: ABS Size: As Shown in the Picture Package Includes: 3pcs Guitar Control Knob note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.