1、Premium aluminum alloy construction ensures durability. 2、The knob is designed for comfort and anti-slipping. 3、Compatible with most of any electric guitars. 4、Perfect gift for musical instrument lovers. 5、Characteristic and exquisite design with pleasant color.<br> Features:<br> Premium aluminum alloy construction ensures durability.<br> The knob is designed for comfort and anti-slipping.<br> Compatible with most of any electric guitars.<br> Perfect gift for musical instrument lovers.<br> Characteristic and exquisite design with pleasant color.<br> Specification:<br> Condition: 100% New<br> Material: Aluminum Alloy<br> Size: Approx.1.8*1.8*1.8cm / 0.71*0.71*0.71in<br> Color: Red<br> Diameter of Inner Installation Hole: 5mm / 0.2in<br> Package List:<br> 3* Control Knobs<br> Notice:<br> Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering.<br> Please understand that colors may exist chromatic aberration as the different placement of pictures.<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store