Game was offered my cavalierking charkes 3 year old Christmas. There are three types of caches. She immediately understood the Little Round sliding. In later came the valve and finally, a good three weeks after the kind of fireplace fitted. For the latter, in order to properly motivate, I had small croqettes replaced by smoked ham ... guaranteed success, she upset top and managed to blow it with the tab. After two months of use, I can say that the dog happens to retrieve his delicacies 3/4 minutes max. We leave it the evening game after dinner, she adores toujous much.