Disappointed customer
I purchased the largest version of the Doggy Brain.
My dog is 1yr old,32kg and within minutes he picked up the items slightly, dropped it, and all the wood covers moved so it took seconds. Also noticed that if he had some food material stuck he would try his best to get the food out, hence his teeth impacted the mdf and the mdf broke away quite quick ... so maybe this item should only be for those small/toy dogs