This is especially helpful for active dogs in need of additional mental stimulation or for dogs on crate rest. (myfantasticfriend.com)
While it is true that there are certain issues that need to be addressed regarding the use of such devices, we can somehow manage these by providing additional mental stimulation as well as taking them out for a walk when time permits. (mypetneedsthat.com)
Some puzzle boxes are toys within toys and provide additional mental stimulation while also rewarding him. (vetinfo.com)