I was using this to rack-mount a Mac Studio. I am selling it because I have replaced my computer. To prevent scratches on the product being mounted, I attached felt to the included hardware. It can be easily removed if you don't need it. All accessories are included. Plus, compatible screws are also included. Due to the nature of the product, there will inevitably be some scratches from the fasteners. Also, there are marks on the clamp cushions from where they were fastened, but there are no issues with use. Please check the photos. -------------------- The following is an excerpt from the product description: (Source: https://www.soundhouse.co.jp/products/detail/item/54370/) --- This shelf allows you to store equipment such as CD decks that are not rack-mountable in a rack. The position of the upper clamp and non-slip stopper can be freely adjusted. The clamps have rubber, so you can securely fix the equipment without damaging it. Please check the movie for its high functionality and convenience. ■ Rack Clamp Shelf ■ 3U ■ Weight: 4.5kg ■ Shelf space: 44W x 38Dcm ■ Height: Equipment up to 6.9-11.7cm can be fixed ■ Load capacity: 31.7kg