Hi Cazzy,
I have the ELC pink ball pit. Only had it for about 3 weeks and my piggies have been in it for the first time, all of this week.
I intend to make a C & C cage eventually, but for now, this gives them adequate space whilst I'm at work during the day. we then have them out during the evening to run about freely.
As for folding it to put it back in the box, well oh dear, lol. I have failed! We keep it flat as in square flat, (take the 4 plastic tube rods out) and then pop it behind the sofa or anywhere against a wall. Takes 2 mins to set up and I usually put a plastic sheeting in first, then layers of newspaper, then fleece on top.
Hope the pictures on here from all the members give you some inspiration.
Beth xx