Features: 1.Every product has a unique Manufacturing Part Number label on the inner package that proves it has been qualified,which include Part Number,Model Number and inspection date information;2.If you have any questions about the item,please provide us the Manufacturing Part Number for checking,your profits will be guaranteed.3. Guitar pickup covers set is made of high quality plastic, it is lightweight, does not take up space, and is easy to install and use.4. This product is suitable for electric guitars, it is durable and ideal as a replacement for your old or broken guitar pickup covers.5. This product includes: 10 pieces 48mm pickup covers, 10 pieces 50mm pickup covers, 10 pieces 52mm pickup covers, 10 pieces volume knobs, 20 pieces tone knobs and 10 pieces switch caps.Specifications:Material:PlasticColor:BlackBrand name: BQLZRSize:Knob: 25.6x13mm/1x0.5Inch (DiaxH)Pickup Cover: 84x18x13mm/3.3x0.7x0.5Inch (LxWxH)The hole spacings at the upper ends of the three covers are:48mm/1.9Inch50mm/2Inch52mm /2.1InchSwitch cap length: 14.5mm/0.6InchWeight:190gPackage include:10 x Pickup Covers 48mm10 x Pickup Covers 50mm10 x Pickup Covers 52mm10 x Volume Knobs20 x Tone Knobs10 x Switch Caps