Messy Mutts Heart Shape Silicone Bake and Freeze Dog Treat Maker MoldsKeep your mutt happy. Keep your mutt healthy. Create healthy homemade dog treats for your furry friend with these flexible silicone treat makers. Designed to bake or freeze! Features: 12 perfect sized hearts per tray with 1 ounce fill line. The hearts notched mid section allows for the perfect break for a ounce treat. Trays nest for easy storageand stack, just turn one 90 degrees! Microwave, dishwasher, freezer, and oven safe up to 446F 230C. Food