Thank you for viewing. I am selling this because it did not fit the bridge plate I have. The following is a quote from the manufacturer's website: ==== Compatible with vintage bridges with spiral saddles (center pitch approximately 20mm), this product prevents "string slippage" during picking, a common issue with spiral saddles, by fixing the string grooves in a position that does not go over the pole pieces of Fender-style JB pickups. The string grooves are processed into a two-stage groove that can hold thin to thick strings without wobbling. Made by cutting solid brass, this product provides rich overtones and sustain, suppresses high frequencies during attack that occur with spiral bridge saddles, and creates a tight attack. It will add new charm to the sound of your bass.