Fender Mustang Dynamic Tremolo Fender Mustang Dynamic Tremolo This is a tremolo unit for Mustangs, once sold by Sound Loft, a well-known parts supplier. It's a Fender Japan tremolo with the following Sound Loft parts pre-installed: * Black Shoes (reinforced springs) * Arm Screw (screw to prevent the arm from falling out) Also included is a tremolo arm (with groove). It was sold as a set, so there's a sticker on the back. Please note that the screws to fix the bridge to the guitar body are not included. Everything in the photos is what you get. It has been used, so there are scratches, dirt, and signs of use overall. Please understand this before purchasing.