This is a mount for the Multiboard system that holds the 11 oz bottle of CRC Heavy Duty Silicone Spray. I have used this spray in my poop chute (removed and sprayed the inside of the chute). I have also sprayed the inside of the extended poop chute/poop bucket from the under Bambu drawers system I printed. Prior to using this spray I would get clogs on long multicolor prints. After this spray I can easily run 3-4 day multicolor prints with over 4,000 color swaps and not have a single bit of waste get stuck in the chute or the extended channel. The spray goes on wet but dries quick leaving behind a silicone layer that material does not like to stick to. If you accidentally get the spray somewhere you don't mean to it is easy to clean off with warm soap and water. I have ran my machine for over 200 hours since the first spray and still have no had any clogs like I used to.