Exercise ball Exercise ball An exercise ball, also known as a Swiss Ball, is a ball constructed of soft elastic with a diameter of approximately 35 to 85 centimeters (14 to 34 inches) and filled with air. The air pressure is changed by removing a valve stem and either filling with air or letting the ball deflate. It is most often used in physical therapy, athletic training and exercise. It can also be used for weight training. The ball, while often referred to as a Swiss ball, is also known by a number of different names, including balance ball, birth ball, body
Flash-ball use of "Flash-Ball". Flash-ball Flash-Ball is a registered trademark for a nominally non-lethal hand-held weapon used mainly by law enforcement officers in riot situations as an alternative to lethal firearms, baton rounds, and plastic bullets. It was developed by French hunting firearms manufacturer Verney-Carron. The weapon exists in two versions of caliber 44/83. The super-pro version features vertically stacked barrels and is made from metal alloys, while the compact version is made from lighter composite materials with the twin barrels side by side. Both versions of the weapon can be used to fire a variety of ammunition although a soft