Product review (3 stars): This new one (probably because it is new) doesn't stay extended like the old one and its diameter seems a bit ...
Bought this for our ferrets. They have just about worn out the old one we've had for years. This new one (probably because it is new) doesn't stay extended like the old one and its diameter seems a bit narrower, causing it to accordion in on itself when the larger male ferret goes through it. Still, can't complain, since it's not being used for what it was designed for!