Easy-to-install Loknob Pro allows you to dial and lock in your sound settings. Once in place, simply rotate the aluminum knob to click into the sound you need. For larger adjustments, simply lift the knob, rotate to your desired sound, then release. Loknob retrofits to most amplifiers, effects pedals, instruments, and live/studio gear. Large Loknob (3/4” OD) applications include amplifiers, instruments, and single or dual knob pedals. Small Loknob (1/2” OD) applications include foot pedals, studio effects, and mixers D'Addario is known for innovative, problem-solving, quality musical accessories and offers a complete line of award-winning accessories including cables, picks, tuners, capos, straps, humidifiers, maintenance tools and more. • MFSKU PW-LNPL-01BS • UPC 019954307431