A base for creating attachments for some Electrolux vacuum cleaners. My vacuum cleaner is branded Aerus, I'm not sure which vacuums are compatible with this interface.This is just the connector part, you'll have to add a useful attachment that suits your need. In the 123D file I've included the attachment that I designed the connector for, and it's shown in the photos, but I didn't upload the STL for it because it's a pretty crummy design. I made it for forcing water down my shower drain to clear out all the hair that I've been losing, and it actually worked okay but it's hard to print (you can see in the photo I had to re-build part of the edge with epoxy clay) and there are better ways of doing it.Man, these instructions are getting negative and also contain very few instructions. Anyway, one idea I had was to build an interface onto the connector so that you can slide on any attachment. I didn't get around to that.So instructions: add your desired attachment design to the bottom of the connector, print it out with supports, remove the supports, and it should just slide into the vacuum handle and lock firmly in place. Alas, it's not airtight, maybe use some silicone rubber or Sugru for that.Total print time was around 45 minutes for the connector only, on a Replicator 2 at default settings.