Thanks! He loves racing through it, as well as just lying in it sometimes. Once upon a time it belonged to the cats! He has a longer tunnel too, about 4 times the length of that one, which he adores - he's half-inched all of the cats' toys! Poor sods can't near them any more... he even gets high on catnip mice, LOL! I'm beginning to think there's a slight possibility that I might just be spoiling him a teensy weensy bit, LMAO!