I have bought this last August for my bones staffie who was 5 months and I have left a good comment ... 3 months after I'm once again searches for a bone but closed extremities! because unfortunately the openings to slide the supposedly treats are a loophole for fearsome fangs like that staffie who find a way to shred the bone boulotant rubber all around ... and swallowing the pieces! I should have listened to the comment smirk ... same with multiboules Kong which have a hole! otherwise it's just a little scratched but indestructible in its powerful jaws flat part ... ... refrain ...