Feature: 1. Made of premium material, solid and durable. 2. High quality knurled knobs specially used for potentiometers. 3. There are total 5 pieces of caps and 5 digital dial scale plate in one set that you may use for many projects. 4. Smooth surface, fit most potentiometer, easy installation. 5. Convenient to use, great accessories for DIY or to replace broken ones. Specification: Features: Made of premium material, solid and durable. High quality knurled knobs specially used for potentiometers. There are total 5 pieces of caps and 5 digital dial scale plate in one set that you may use for many projects. Smooth surface, fit most potentiometer, easy installation. Convenient to use, great accessories for DIY or to replace broken ones. Specification: Inner Diameter: 6mm / 0.2in Diameter: 27mm / 1.1in Height: 15mm / 0.6in Fixation Form: side screw fixation Package List: 5 x Potentiometer Knobs 5 x Digital Dial Scale Plate