My senior lab has hip issues and this is the first treat that keeps her busy for a solid half hour without me worrying about her joints. The 20 to 40 minutes of play claim is spot on, and she actually seems more eager to move around after chewing one.
Ruby★★★★★
My old boy treats these like a puzzle and they keep him busy for a solid half hour, which is a win for both of us. The fact that they're made in small batches in the USA and support his joints makes me feel better about giving him something to chew on every day.