Created with over four years of research and development, the Ant Proof Plate keeps pet bowls ant-free during mealtimes and beyond - great for picky pets. Safe and hassle-free: simply place anything that needs protecting on the plate, and that's it. Ant Proof Plates use an all-natural, non-toxic ant repellent, giving peace of mind and safety. Also great for keeping ants off honey and other sweets that need to be kept at room temperature. Works without water, oil or poisons. Features: Safe and non-toxic No initial setup required - comes pre-loaded with ant repellent Strong, sleek design Simply wipe clean Fully portable Years of protection Uses gravity to enhance repellent effectiveness Natural ant repellent Dimensions: Square Plate: 185 x 185mm Rectangular Plate: 305 x 185mm Round Plate: 275mm diameter How it works: The Ant Proof Plate uses an all-natural insect repellent made from fossilised water plants, known as diatoms. The diatoms are mined and ground into a powder that looks and feels like talcum powder. Diatoms are harmless to mammals - we can eat it, and in fact we do, since it's used in many grain-based foods to keep bugs from eating the grain during storage. To insects, slugs and snails, diatoms act as a lethal dust with microscopic, razor-sharp edges. These particles stick to an insect and get embedded between its exoskeleton joints - as the insect moves, it's physically cut. Insects won't cross diatoms once they encounter them. There's no build-up of tolerance like with poison, because the method of repelling is physical, not chemical. Refill packs are also available.