Mini rotavator refers to a specific type of agricultural or gardening equipment, most likely a compact rotavator with 16 blades and a working width of 3 feet. A rotavator is a machine used to till soil before planting crops or gardening. The number of blades on a rotavator affects its ability to break up soil and prepare it for planting. 3 feet most likely refers to the rotavator's working width, which represents the width of soil that may be tilled in a single pass. A greater working width allows more efficient tilling since it covers a larger area in less time. The 16 blades specification indicates that this tiny rotavator has 16 separate blades linked to its rotor. The number of blades affects how finely the soil is tilled and how effectively clumps of soil are broken up. More blades result in finer tillage, although they may require more power from the machine