These compressed peat discs have been a favorite of outdoor and indoor gardeners for years due to their ease of use and convenience. The pellets expand when watered and grow into a small plug surrounded by bio-degradable netting with a pre-drilled hole for seeds. Gardeners can start seeds indoors under lights and then place the seedling plugs right into the ground when time to transplant after the last frost. Very clean, neat, and convenient. Also great for cloning plants around the garden.