Chew King Premium Treat Dog Toy

I had high hopes for this product and the only reason I kept it is because of it's low price. two major flaws keep it from really working for my needs (freezing meals). 1) the hole. I understand why it's there but it needs a stopper. too small to plug with a treat or anything. my first attempt was an absolute mess. so I tried a dollop of peanut butter and froze, then filled with his soaked food. that worked but was too much of a process for practicality. 2) too deep. my dog is incredibly food motivated and is used to having to work for his meals. that said, he literally gave up halfway through. I realized the feeding hole is way too narrow for the depth of the food. it's unfortunate because like I said, there's a ton of potential. if my boy just enjoyed chewing and I needed a heavy duty chew toy, this would be great. but it's definitely not convenient for frozen mealtime.