This is a genuine Echo 8" brush blade with 80 teeth and a 25mm arbor, designed for use with string trimmers, brush cutters, and weed trimmers. It is compatible with all power sources and has a sleek black color. This model was manufactured in 2020 and is a great addition to your outdoor power equipment collection. The Echo brush blade requires no assembly and has no specific horsepower or engine size requirements. It is a traditional style blade made in Japan and comes with one blade in the pack. The voltage and power source are also flexible for your convenience.