The Balabulala Pressure washer extension kit on Amazon comes with spare O rings which will inevitably disappear in the bottom of a drawer, so I designed this little bracket that attaches to one of the wand segments with a couple of small tie wraps to store the spare replacement O rings. There is nothing special required and just let your slicer do its thing. I made mine from PETG, but PLA should work fine as well. If you have a pressure washer, this Balabulala extension kit is a worthwhile accessory.