The Catit Cat Grass Kit contains 3 sets of seeds and 3 sets of vermiculite for optimal results and clean planting. Unlike potting soil, vermiculite is a tidy resource to work with. Keep your hands clean while guaranteeing the best care for your cat. Grass is a natural source of fiber, which stimulates digestion and helps prevent hairball buildups. Houseplants are often toxic and therefore not suitable for consumption. The vermiculite bags have been enlarged to improve growing results. This soil is extremely lightweight and enables to sow with clean hands! For use with the Catit Senses 2.0 Grass Planter.