If you want to accelerate the composting process or have a smaller backyard, this method is ideal. The organic materials inside the bin are combined and aerated by turning the tumbler regularly which speeds up the decomposition process. The spinning design of the VIVOSUN Outdoor Tumbling Composter eliminates the need for manual digging or mixing of pile. It has excellent ventilation and is of a strong, sturdy construction. Bonus: Waterproof garden gloves are included!