Slowfeeder

All slowfeeder are handmade by the owner shop. 
This is a food safe ceramic you can put in the dishwasher, the microwave of even the freezer with food in it. They are heavy so your dogs can't take it in his mouth
The size start at 5 inch wide to 8.5" inch wide

Tips: If you want to stimulate more your dog, you can buy a bigger slowfeeder and add water to the kibbles or the raw food. You can also freeze it.