The UFO Maze Spin Bowls, level: tricky, by petdreamhouse are dynamic slow-feed pet bowls that turn mealtime for your dog or cat into fun and interactive feeding. Spin bowls encourage sniffing, licking, and problem-solving during meals, which naturally slow eating and prevent choking, bloating, and excessively fast eating. Each bowl has a multi-functional center puzzle element that can be adjusted in height and resistance to offer variation. Each bowl has four large anti-skid rings to provide high stability. 9.8 x 9.8 x 5.1 inches.