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
Zombie ball Zombie ball The zombie ball is a classic magic trick first introduced by Joe Karson in the 1940s. It remains a staple of many shows to this day. called it one of the most popular tricks in the world. The magician places a large metal ball on a small pedestal on a table. The ball is then covered with a large silk cloth which the magician holds above the ball. The ball then begins to lift into the air and move about under the cloth, before appearing out from under cloth to roll along the upper edge of the stretched-out