My robot vacuum was discontinued, but the photos and measurements matched so I ordered these bags to try. I held the bag next to my last original bag and everything matched except the length of the cardboard. So I drew a line and cut the bottom of the cardboard with tin snips to match the exact profile of the original, and it slid in perfectly, with the port seal aligning perfectly. I ran the robot 2 times so far, and each time it emptied lots of cat hair and debris without issue. This bag seems to breathe easier than the originals, so it empties my vacuum very vast. I am extremely pleased that I lucked out in finding a replacement bag brand that I can easily make fit, and that it empties my robot super fast.