I made these risers to be able to print without having to remove or slide the top glass back. My qidi is too close to the wall to slide so I had to remove it completely but using these risers it stays in place. Easily removed if you need to print materials that need a heated chamber. These give you about 60mm of height so it keeps the filament tube from rubbing on the handle. I know you can print out the official QiDi riser that addresses this issue but it is a huge and time consuming print but this is a good option if you don't want to bother. I printed these with generic PLA+