Dyson DC41 Ball Multifloor Upright Vacuum (Certified Refurbished) This Certified Refurbished product is manufacturer refurbished, shows limited or no wear, and includes all original accessories plus a 6-month warranty Patented Radial Root Cyclone technology for no loss of suction. Strong suction power at the cleaner head. The cleaner head self-adjusts for optimal contact - even on hard floors. Ball technology - turns on the spot. Steers easily around furniture, obstacles and into difficult places. Lightweight and durable. Less weight and bulk.