Simple Solutions Patio and Deck Stain Odour Remover is ideal to use outdoors on tough flooring and furniture. Contains dual-action odour eliminators specifically formaulted for organic pet waste. Removes stains from patio furniture, concrete, rock and more. Safe on grass, plants and shrubbery. Works on both new and old stains. Prevents repeat marking. Safe to use around children and pets when used as directed.