Bought the Kong Replay to add more treat-dispensing toys to our dog's collection. It works but it is not very challenging for our dog as the treats dispense quite easily. There are two parts at either side of the toy that can be twisted open to fill the toy with treats but the parts feel a bit fiddly so I have some concerns about their durability. Between this and the Kong wobbler which I also bought, the wobbler felt better constructed and a more challenging toy.

My beagle really loves it though he got a little impatience when the treats doesn't drop out.