Simple Solution Pee Post Pheromone-Treated Yard Stake is a training device that teaches your pet to urinate in a specific area of your yard. Encourages pet to eliminate in a specific area. Helps maintain lawns and makes clean up easier. Remove from packaging and select an area in yard where you want pet to eliminate. Gently hammer on the top rounded portion of stake until its approximately 4 or 5 inches in the ground. Plastic And Pheromones. 1 Stake: Size: 13 in.