Knob guards/setting savers for the Darkglass B7K/classic ultra. * Completely covers the knobs, so you can step on it with confidence! * Prevents knob breakage or bending! * Prevents the problem of feeling like your settings have slightly changed! * Protects the value of your effects pedal by preventing scratches! * All items inspected! * Fits perfectly and won't fall off! Please feel free to contact me if you're wondering if this will work with your pedal, or if you'd like me to make one for a specific pedal. * These are made by a amateur using a 3D printer. I test them to ensure they function correctly before shipping, but please understand that there may be individual variations. * Colors will be sent randomly if not specified. Available colors are listed in my profile. Colors other than those in stock will be an additional 250 yen per color. * Discounts are available for multiple purchases, and combined shipping discounts are also available with my other products. Please feel free to ask.