This cleverly uses the airflow of a vacuum to spin a rotating brush. It works very well with standard Hoover backpack vacuums. Downgrading to 4 stars as the turbo can get stuck when sucking in small debris. Small pieces of gravel were found from the garden path in our yard. and caused a traffic jam. Fortunately, the cover over the turbo blades was easy to open. and I could move the turbo blades with my fingers and release the pebbles. I assume this is a common occurrence as we have a lot of gravel paths in our garden (sigh).
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