Our Pop-Up Fabric Tents and Tunnels are unique; unlike other designs ours can be joined together using built-in Velcro fastenings. Both tunnels are 90cm long (making them ideal for most sizes of runs/playpens) and can be used indoor or out. The tents allow pets to shelter from the elements and are generously sized: the larger for a couple of average-sized rabbits, the medium for a number of guinea pigs or ferrets. The tents are supplied with a removable mattress and run ties. The polyester fabric is wipe-clean and is supplied in two popular colours. We even have a 28cm long Crinkle Tunnel for rats and hamsters which also interconnects for even more sales!