content: the Eureka 431BXZ Optima lightweight Upright Vacuum although small in size is a powerful little wonder.. With the bagless filter that really filters the dirt and dust particle and the storage area for vacuumed item, this little puppy works beyond my expectations. So it doesn't have a ball, and you have to move it a little to get to the corners, heck when you save $200 what is a little moving around. It works and that is the bottom line...