Webbox Cat Grass is a 100% natural treat suitable for all cats. Webbox Cat Grass is a complete easy to grow kit with 4 simple steps! It is designed to help eliminate hairballs that accumulate in the stomach through the cats regular grooming routine, thus also supporting healthy digestion. It is also a safe alternative to house plants and the perfect addition to both indoor and outdoor cats diets. The complete kit includes mineral soil, seeds and tray with lid, just add water!