This worm composter features 4 compartments. Worm composting is an incredibly efficient way to turn kitchen waste, garbage, and cardboard into nutrient-rich compost for your garden. With our worm farm, the entire process becomes faster and easier. Simply add worms and your organic waste to the bottom tray, and the worms will start processing the food. Once the bottom tray is full, add another compartment. The worms will migrate up to the newest food source, leaving nutrient-rich compost in the bottom tray. As the waste decomposes, moisture seeps through the system, carrying nutrient-rich particles with it. Afterwards, you can drain the organic liquid fertilizer from the tap. The delivery includes a 4-tier worm farm and a layer of bedding material. Overall dimensions: 42 x 42 x 60 cm (L x W x H); Dimensions (per compartment): 36.5 x 36.5 x 12.5 cm (L x W x H); Material: HDPE plastic; Color: Green.