From hipshot: Retrofits Gotoh GB7 tuning machines. Fits many Ibanez, Yamaha, Epiphone, Peavey, Modulus, Schecter, and Warwick bass guitars. Had this on a traben chaos, works perfect. Sold the bass so no need for it any longer. Still like new, only used a few weeks sparingly. Looking for $55 shipped obo. Thanks!