Our bowls are made from bamboo and cooked rice husks bonded together under extreme heat and pressure. All 100% natural renewable resources. You have to touch and feel it to believe it. Looks and feels like the strongest plastic bowl but without the drawbacks of plastic; it's even dishwasher safe. Will last as long as any plastic bowl. Pet bowl is completely safe for your pet and good for the environment. 7-inch opening, 9-inch base (4 cups). Brown. Biodegradable made from all natural materials.