The Catit Senses 2.0 Cat Grass is a refill pack especially made for the Senses 2.0 Grass Planter. The Kit includes 3 sets of seeds and vermiculite; everything you need to get your garden growing! The grass is a healthy alternative to houseplants which are often toxic to cats. The grass is great for your cat's digestion and helps with hairball build-up. Each pack is individually packed to ensure they stay fresh until you wish to use them.