I have 2 dogs one is small other is a big dog thought it would of been bigger but kept my 2 entertained for a bit and my big dog had too work harder so not too bad
My four dogs love brain training games. This one is made of sturdy plastic and has survived some very enthusiastic pawing and clawing. The only downside is that it is not that heavy and so will slide around the floor a bit while they are playing, which is obviously not ideal.