Contains 11" x 11" tray and dome with 25 42mm Jiffy-7 peat pellets. Convenient, no-mess way to start flower and vegetable seeds and cuttings. Add water and pellets expand to form starter pot/soil with Canadian sphagnum peat moss to provide a rich, high-quality growing environment. Transplant directly in ground or larger containers. Clear dome maintains greenhouse humidity and temperature for healthier seedlings.