Smooth airflow without hair or debris sticking to the walls, and long-term use keeps the ducts clear without losing suction. Overall it's lightweight and easy to lift, so you can clean the whole house for a long time without straining your arms. The texture stays hard and brittle in both high and low temperatures, and performance remains stable in daily dry dust suction use. The retractable structure is compact, and it dries quickly after being rinsed and wiped clean with water. Highly elastic and reinforced, it bends without collapsing, and maintains stable suction from multiple angles without loss., Manufacturer: lw0612