Stainless steel DOG BATH for small and medium-sized dogs, Roundish series Rounded corners where people and pets come into contact during shampooing. Odor-resistant drain trap (with hair-catching stainless steel mesh) Drain hose and water stop cap included The bottom surface has non-slip bumps, making it difficult for dogs and cats to slip without using a slatted floor. The surface is clean, but there is brown staining on the underside (please check the images). It should come off with polishing. Thank you for viewing.