Jiffy 14 Count Self Watering Greenhouse. It has 14 cells and waters up to 10 days. This easy-to-use system features a special reservoir and water-wicking mat that keeps seeds moist without overwatering. The peat pellets can be planted into the ground along with the seedling, keeping the roots intact to reduce transplant shock. Includes 14 Jiffy 50 mm diameter peat pellets (perfect for tomatoes and peppers), a watertight base plastic tray, a clear plastic greenhouse humidity dome, and biodegradable netting derived from cornstarch. Simply add water and seed (seeds sold separately).