Please read my profile before purchasing for a smooth transaction. This is a knob guard/setting saver for the Darkglass B7K/classic ultra. * Completely covers the knobs, so you can step on it with confidence! * Prevents problems like broken or bent knobs! * Prevents issues like feeling that the settings have slightly changed! * Protects the value of your effects pedal by preventing scratches! * All items are inspected! * Fits perfectly and won't fall off! If you have any questions, such as whether this can be used with your pedal, or if you'd like me to make one for a specific pedal, please feel free to ask. * This is made by a amateur using a 3D printer. I will test it to ensure it works correctly before shipping, but please understand that there may be individual variations. * If you do not specify a color, I will send one at random. The 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 contact me.