Silver One products are based around one thing. Quality! When we develop a product we don't stop at nothing until we have a product that we are proud to call our own. These exercise balance balls have all the features that you want, and even some you may not have known were available. Our mission since day one has remained the same, to provide our customers with quality products they need and a customer interaction they did not know still existed. Our products are here to help you reach your goals while not breaking the bank!-Improves balance & stability - Perfect for home exercise, yoga, pregnancy or to improve your core strength. Replace your office desk chair for improved posture and to relieve lower back pain. -Strenghtens core muscle & improves coordination. - It engages the core muscles by forcing the body to respond to the instability. - You can also use your balance balls as a tool for stretching while performing yoga or pilates exercises. - Use with weight training to add challange and engage more of the bodies muscles. - Includes air pump and exercise guide