Jackatoo
This was bought for 2 baby guinea pigs and was ok until they were about 7 months old. After that it is far too small. 2 guinea pigs need at least 7.5 foot squared. The quality of the product is unquestionable, it is absolutely fantastic, but far too small for 2 guinea pigs, despite me being recommended this by the shop I adopted mine from. It is now up for sale!