Symtec Heat Demon Metric External Grip Warmer - Black 211036 Designed for motorcycles with weights or inserts inside the handlebar or motorcycles with clip-on style handlebars Kit includes everything needed for fast, easy installation - No drilling required Convenient and safe heat extends your riding season Custom clamp design mounts controller to ANY handlebar or it can be mounted to the brake or clutch perch 4 color L.E.D.