http://www.zooplus.co.uk/specials/rodents/special_offers?unique=HTML75
I think the ruby pens are great for indoor setup. For some reason they don't have the largest ruby pen on the UK website, but you can find it on zooplus.com if you don't mind paying in Euros (your credit card company will usually charge you a couple quid in commission / exchange spread when buying things in Euros).
I think the ruby pens are great for indoor setup. For some reason they don't have the largest ruby pen on the UK website, but you can find it on zooplus.com if you don't mind paying in Euros (your credit card company will usually charge you a couple quid in commission / exchange spread when buying things in Euros).