When Yngwie Malmsteen turned to Seymour Duncan to improve and refine his pickups -- the YJM Fury™ Signature Model for Strat® -- it made sense to refine another important part of his playing volume potentiometer. With his highly refined technique and exacting attention to sound, Yngwie employs the volume pot to take complete control of his phrasing dynamics. He uses his pinkie finger to flip the volume on and off for dramatic, lightning-fast starts and stops. That's why Yngwie's YJM High-Speed Volume Potentiometer contains a minimal-viscosity lubricant for fast-action potentiometer turns, for the guitarist who wants fast, dynamic phrasing control. Works with any electric guitar, including Strat-style and dual-humbucker guitars. At its core, the YJM High-Speed Volume Pot is a high-quality Bourns potentiometer customized for Yngwie's playing needs. The split-shaft design of the post can accommodate a variety of knobs. Includes one high speed YJM pot, knob not included.