This vacuum brush is NOT horsehair! This is falsely advertised. Synthetic bristles ie plastic, nylon etc. To add to the injury, plastic/synthetic bristles will NOT smooth surfaces such as polished wood etc. Therefore they can only be used for dirty work such as garage floors, outdoor patios. However, the bristles are too long and will be sucked back into the vacuum tube, blocking the airway, further compromising suction. I trimmed the bristles to prevent this (as others have described) but they