The StageTrix Settings Saver pens are the best and most reliable way to mark settings on your mixing consoles, pedals, outboard effects, or anywhere else you need to ensure your perfectly dialed-in settings won't be lost. Easily mark the position of knobs, sliders, switches, stands, and more so you never lose your spot or setting again. Designed to wipe clean to have a blank slank for the next sessions or show. This two pack comes with neon green and white to ensure a visible annotation no matter what the color of the surface is or the lighting of the environment. Inside, outside, in the dark, or in broad daylight, always know your spot.