This is a combination kit of (2) Genesis Dual Composting Tumblers, (1) MAZE Composting Cart and (1) RSI-Sifter. The Genesis 42 Gallon Composter overcomes the drawbacks of having to wait 2-3 months for compost to mature by allowing one chamber to be filled while the other is curing. Features of the new design include 2 x sliding doors for easy access, built in mixing rods, multiple ventilation ports and a powder coated metal frame. The MAZE Composting Cart (designed to fit underneath the Genesis Composter) makes for an easy and relatively mess free transfer of fresh compost to the desired location. The RSI-Sifter is ideal for sifting composted materials from your composter or compost heap. A portion of every composter sold will be donated to the Michael J. Fox Foundation for Parkinson's Research through the TEAMFOX program. To find out more please visit www.Michaeljfox.org to see how money is being spent and what you can do to also help find a cure.