Batch composting is the fastest and most efficient way to produce high quality compost, and this dual-bin tumbler makes it easy. Fill one side with kitchen scraps and yard waste, then stop adding materials and let it "cook," turning it every few days to speed up the decomposition process. In the meantime, add new scraps to the other side. When the first batch of compost is finished, remove it and repeat the process, letting the other side cook. Wheels allow you to roll the composter from the back door to the garden. Or, move it out the way when you mow.