We got one for Izzy about a year ago and she would not touch it - but now that we have Cosmo and boy he is a chewer and can go through a bully stick in one day
..I found the antler buried in our toy box and gave it to him and he loves it - he is a hard chewer and he has put a few marks on it but not like he does with the bully sticks.
I also got the small one.