I purchased this on Mercari, but I'm not using my Boss compact pedals much anymore, so I'm selling it. This is a pedal riser specifically for Boss compact pedals, made with a 3D printer. * Made of PLA plastic * Raises pedals 15mm * Inner dimensions: 120 x 67 x 9mm It was convenient because it has holes in the legs to consider cable routing. I'm selling it to someone who can use it. It's designed specifically for BOSS compact effects pedals, so it's likely not usable with other brands of effects pedals. Please be aware of this.