Worm composting is an incredibly efficient way to convert kitchen scraps into nutrient rich compost for your garden. Your plants will thrive with this all-natural compost. The Worm Factory® automatically separates food scraps from finished compost. Simply fill the bottom tray with red wiggler worms, bedding and food scraps. As the worms finish digesting they will migrate upward into the tray above leaving rich castings behind. The liquid created from the worm castings can be effortlessly drained as a fertilizer, also known as worm tea, from the easy-to-use spout. The Worm Factory® couldn't be easier to use or clean. The lid provides proper ventilation so there are no unpleasant odors. Each Worm Factory® comes with simple but detailed instructions. Made in the USA. 5-year limited warranty on materials and workmanship. This five tray system measures 16" x 16" x 21.