This is a black, metal rackmount tray. I believe it's specifically for the BOSS rack series. - Color: Black - Material: Metal - Features: Mounting holes, scratches Thank you for looking. A digital reverb RRV-10, which I have listed separately, was mounted on it. (The protrusions on the top screw holes match perfectly with the indentations on the bottom of the RRV-10, so I believe it's specifically for the micro rack series.) I hammered the right side protrusion to flatten it and mounted it with YAMAHA effects units. There are also about two extra screw holes that weren't originally there, and there are some bends and scratches. I've roughly adjusted it and touched it up with black lacquer. If anyone needs it, please feel free to purchase it.