This is a listing for a knob setting guard. The effector unit itself is not included. This is a custom-made knob guard designed with CAD software and printed using a 3D printer. It was made to minimize the impact on the external appearance. After several version upgrades, it has been stabilized, so please use it if you need it. *As shown in the side view images, the height of the guard part is made to match the height of the pedal. If you plan to use it with an effector where the top of the knob is high, please contact us in advance. We will make a modified version. <Specifications> Made to fit models with an operation panel (base) on the top. Please understand that we have not confirmed implementation on all models. The frame part is the same size as the main unit. The screws are designed so that their heads do not protrude, ensuring a natural appearance. <Product Contents> Knob Guard x3 Replacement Screws x6 The screws included with the effector can be used as is, but replacement screws are also included. <How to Use> Remove the screws and washers on the side of the stomp part, set the knob guard on the main unit, and re-fasten the screws. When fastening, the order of stomp part - washer - knob guard - screw is recommended. If you do not tighten the screws too tightly but leave them slightly loose, you can lift the knob guard as shown in images 4 and 5, allowing for setting changes when necessary. Please feel free to ask any questions. Colors other than black are also possible depending on the available materials. BOSS BOSS BOSS CON BOSS CON Knob Guard Setting Guard Compact EFFECTOR Effector Pedal Stomp box 3D Printer Control Knob Protector Manufacturer...BOSS Type...Electric Guitar