Sasha is an aggressive chewer, she's part lab and she's in that chewing stage. I bought her one of these Antlerz and while every other Bully Stick or chewy ends up lasting maybe 10 minutes or so, this Antler took her several days to grind down to nothing, with her chewing it for many hours a day. I love them, they keep her occupied and happy, they don't stink and they are the perfect chew to keep an aggressive chewer happy. Will definitely repurchase! -- James