This harness is completely prewired. All you need to do is solder your pickups to the switch and ground them to the volume pot. Audio-taper potentiometers, perfect for replacement/upgrading volume and tone controls. Guitar volume Potentiometer Split shaft with coarse knurling,Coarse knurled shaft fits most control knobs Specifications: Item Name: Guitar Potentiometer Material:Aluminum, gold plated on shaft. Size: As the pictures shown Color: As the pictures shown Quantity: 1 Set Note: 1.Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you