The two chamber design of this composter allows you to continually add waste, and the internal mixing pins help to properly mix new compost materials with old. The aerator/drainage units on the doors of the chambers, along with the screened ends allow a constant flow of air, so your compost won't stink! Turning the drum is easy because the unit is gear driven, so it won't slip. The drum of the composter holds 180 gallons of material and sits 27 inches off the ground, so it won't leak into the ground or be bothered by animals. Assembly required. Composter measures 68 inches high x 50 inches wide x 40 inches deep.Your ComposTumbler is guaranteed against any defects in the materials or workmanship for 5 years from the date of delivery. We will repair or replace any defective part (or the entire unit if necessary) at our expense. No IFs, ANDs or BUTs. This warranty is given to the original purchaser and is not transferable,nor does it apply to any damage caused by misuse or acts of nature. This warranty gives you specific legal rights, and you may also have other rights, which may vary from state to state.