I am in the UK and have the Horn Outback - looks like the Koala Outback Jr and my Janome 6600 fits perfectly. I had to order a plexi - glass insert for it, for my model - to snuggly fit around my machine- when pushed slightly down and it is then totally flat. I do not have the extra little cupboards with it. Then you can take the insert out - I have a storage slot for the plexi - glass at the back of the cupboard and it all folds nicely away !! I love mine.