Poly Carbon™ material combined with the industry's most powerful Pulse Power™ motor gives you unmatched performance. Never-Clog tapered hose is an industry first and patent pending. The hose starts at 1.5" and grows to 3" as it enters the vacuum. A 9" straw doesn't get stuck. Backrest is suspended away from the vacuum, keeping your back cooler. Our exclusive premium Ultra-Glide cord slides easily across floors and resists cord twisting. Doubles as a blower on this 10 Qt. This innovative feature is further enhanced with the use of the crevice tool on the end of the hose.