ITEM NAME:1 Set Guitar Electronic Circuit Wiring Harness-Prewired for JB Bass Guitar A#S Product Description Description: Features: This harness is completely prewired.But All you need to do is solder your pickups. Use this harness for JB bass guitar. Specifications: 1 x A500k 2 x B500k Pots with 18mm Shafts/Base Product size: approx. 25*15*15mm/0.98*0.59*0.59'' Net weight: approx. 60g Note: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding. Included: 1 x Wiring Harness-Prewired Set.Use this harness for JB bass guitar. Included: 1 x Wiring Harness-Prewired Set. Due to the different display and different light, the picture may not reflect the actual color of the item. If item is defective after 3 months, you can still send it back to us.