Go Spot® is the only dog potty shaped to work with a dog's natural instinct to circle. Provides optimum surface area for your dog to do their business. The two-piece design features an integrated tray, drainage, and Pup-Grass™ Synthetic Grass Built for Dogs with instant drainage and antimicrobials. Our specially formulated all-natural scent will have most dogs using it automatically. The patent-pending design is 24" in diameter and will accommodate small to medium dogs. Certified Lead Free.