Cheap runs

Its getting to the point now where im chasing eclipse round the garden for what seems like hours when I let him have a run, I'm considoring getting him a collapseble run that I can leave him in unsupervised.. must be relitivly cheap.

Any suggestions?

http://www.zooplus.co.uk/shop/rodents/cages/pens_fencing/pens_with_racks/35638

These are on special offer and they do free p and p

i was looking in my local pets at home store the other day as i need another run, they had a collapsable wooden and mesh run for £35 and it was quite a good size.