The JW Pet Company Heavy Weight Skid Stop Bowl is a heavy duty plastic bowl. The Skid Stop bowls were designed with a rubbery base to prevent the bowl from sliding or moving around on the floor while the animal is eating. The rubber bottom creates a firm grip on slippery surfaces to prevent the bowl from moving or tipping, this also helps to prevents spills. Skid Stop bowls are dishwasher safe and are rust and bacteria resistant. Available in assorted colors. Perfect for medium to large pets.