Juggling balls, or simply balls, are a popular prop used by jugglers, either on their own—usually in sets of three or more—or in combination with other props such as clubs or rings. A juggling ball refers to any juggling object that is roughly spherical in nature. Types Beanbags are the most common type of juggling ball. Juggling beanbags are typically constructed with an outer shell made from several pieces of vinyl or microfiber (imitation leather), and filled with millet, birdseed, plastic pellets, sand, crushed rock, ground rubber, or other material designed to give the beanbag bulk. Beanbags come in a variety of colors, the most common being "beach" (a combination of 4 panels colored red, yellow, blue and green), white, and other combinations of colors that are easily visible. Beanbags are preferred by many jugglers because beanbags don't bounce or roll when dropped, are caught the most easily, and have reasonable pricing and availability. Beanbags are generally found in sizes ranging from bob 2.5"-3" in diameter, with weights of 90-130g. Smaller beanbags with less filling in them are sometimes used by numbers jugglers, who require a smaller and lighter ball so they can throw and catch many balls using the same hand. Stage balls are often used during juggling performances. Stage balls have a polished outer shell, typically made of plastic or hard rubber, and are hollow. For this reason, stage balls can be manufactured to a greater diameter than beanbags, whilst maintaining a more manageable weight for the juggler. Furthermore, stage balls hold their shape and color better than beanbags making them a more visual prop. Stage balls, however, tend to roll away when dropped, and therefore are not commonly used during practice. Stage balls are generally found in sizes ranging from 2.5"-4" in diameter, though many performers such as Sergej Ignatov have used balls larger than 4" when performing for extra dramatic effect. DX/Russian balls are a style of juggling balls that combines many of the benefits of both beanbags and stage balls. DX balls are constructed with a hard PVC outer shell, similar to a stage ball, and are part-filled with millet seed, to give the ball a consistent weight. This produces a juggling ball that flies consistently in the air, and does not roll away when dropped. The DX ball is patented in the UK by Beard Enterprises Ltd. Bouncing balls are designed for bounce juggling,