Features SUITABLE FOR : Suitable for mounting on the potentiometer with 6mm handle. DURABLE : Frosted surface gives you comfortable hand feeling. HIGH MATERIALS : Solid aluminum structure, wear resistant, sturdy and durable. ADJUSTABLE : Non-slip texture design makes it easy to adjust the volume. EASY TO INSTALL : Easy to install, good replacement for the old or broken one. Features:   1. Suitable for mounting on the potentiometer with 6mm handle. 2. Frosted surface gives you comfortable hand feeling. 3. Solid aluminum structure, wear resistant, sturdy and durable. 4. Non-slip texture design makes it easy to adjust the volume. 5. Easy to install, good replacement for the old or broken one.   Specification: Material: Aluminum Color: Black Diameter: 32mm/1.26in Height: 13mm/0.51in Hole Depth: 8mm/0.31in   Package l ist: 1 * Knob 1 * Wrench 1 * Screw Package List 1 * Knob 1 * Wrench 1 * Screw