Can withstand more weight than the Versa Ball. Constructed of high-quality, professional-grade materials and won't pop if punctured. Instead, they deflate slowly, significantly reducing the risk of injuries if a puncture occurs while in use. Easy to inflate, and include a tape measure make it easy to tell when you've added the right amount of air. Sold individually. Storage options and pumps available. User's Height Listing: 45 cm: 4'6" to 5' 55 cm: 5'1" to 5'7" 65 cm: 5'8" to 6'1" 75 cm: 6'2" to 6'7"