The Earthmaker 3-Stage Compost Bin is designed to do the same job as three compost bins but in a vertical tower. This compost bin has a unique design that increases the decomposition process significantly over standard single compartment units. It offers more airflow resulting in better aerobic action and is endorsed by GAIAM as being the most productive compost bin on the market in 2010. Once the whole bin is full the bottom layer will be ready to be used. The swivel lid keeps animals out and the compost bin includes a push and pull tool to help with the compost.