After a few turns around your home or office, you will appreciate the attention to detail in Fakir's "Flight Series" uprights. The engineering and customer conscious design can be found in the big things like the superior cleaning power of these two motor uprights and on board tool system that is there when you want it, but out of the way when you don't. The S312 is ideal for small or limited carpet areas. The large over molded wheels and unique roller system results in more maneuverability and less effort during cleaning. All Flight Series uprights come equipped with a multi layer paper bag and HEPA cartridge filter to assure clean air exhaust, keeping your home or office healthy and dust free. The S-312 measure 12" across.