The Classic Moss Amigo makes the ideal care-free companion. Unlike pets or plants, the Moss Amigo needs no special care. Some chilled tap water and a shady spot is all it takes to make your new Amigo happy. Each new Amigo comes with a durable 16 oz. Easy to maintain, and perfect for your busy lifestyle. Amigo sized moss balls are approximately 1 inch in diameter or more. All Moss Amigos are composed of living biomass bound to a buoyancy kernel for maximum growth and proliferation.