The RSI-Maze 48 Gal. (180 l) Geared Compost Twin Tumbler transforms leftover waste and garden refuse into a rich, nutrient dense compost, with next to no effort at all. A key feature is the 2 compartments which means you never stop composting. When the first compartment is full, you start on the second compartment. Once this side is full the first side is ready to empty and the cycle continues. For larger families that create more compost material the interior divider between the chambers can be removed to allow the entire composter to be used for single composting. The strong reinforced barrel is UV protected and contains multiple air vents to promote aerobic decomposition. The large opening and sliding doors allow for the easy addition of waste and collection of ready compost. A very unique feature is the gear and handle which ensures easier turning of the drum and the geared ratchet will automatically lock rotation in any position (a feature that is not seen in most compost tumblers at this price point and volume). With the optional compost cart that fits right underneath the composter makes moving your newly made compost simple, clean and easy. This item is a set and comes with the RSI-MAZE Composting Cart, (RSI-MC-CT55) which is designed to make your gardening and composting simpler and fits easily under the RSI-MAZE compost tumbler. It will work with other composters with a 15 in. clearance.