The croc has lasted a few weeks so far, she has chewed through some of the edges such as the tail and the spikes on the top, but hasn't got to the stitching yet. Which is good. I have a giant schnauzer and she is cute rough and these toys are the only ones that seem to last!
My Lab/Kelpie X loves this toy, but I don't know that "6" on the tough scale was high enough... she ripped a hole in the mouth of the toy within half an hour along the stiching however the rest is in tact and being that it's larger than most other toys I think she sees it as a bit of a challenge.
My kelpie loves her crocodile - she pulled half the stuffing out on the first day through a hole she made between his eyes, but the toy is still in one piece and she's enjoying it a great deal - both squeakers (one in the mouth and one in the bottom) are both still working and she's having a ball with it.
My dog LOVES this toy, but it has only taken him 4 days to tear a large hole in it.The mouth of the toy seems to be a weak point in the material although the rest is strong and well made.