Helps aerate and circulate compost, introducing oxygen needed for microbes and promoting faster decomposition. Extra durable, all steel construction. Compost Aerator. Operating Instructions: Thrust the Compost Aerator directly into the center of your compost pile. As you pull up on the Compost Aerator, the folding wings will open and turn the compost. Repeat until your compost is thoroughly mixed. Specification: Item Number: CA-36. Length: 37 inches. Item Dimension Width: 9 inches. Height: 1.13 inches. Item Weight lbs: 2.9. Material: Steel .