Best Seller! 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. Pump not included. Features: Promote proper posture, increase lower back mobility, build back and abdominal strength Improve core strength High quality professional grade PVC construction Available in 3 sizes and 4 colors Tape measure included to indicate proper inflation 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" Versa Ball Versa Ball Pro Primary Uses Core, Stabilization, and Rehabilitation Larger Users and Dynamic Resistance Training Static Weight Limit 800 lbs. 1,000 lbs. Burst Resistant to 500 lbs. 1,000 lbs. Sizes 55 cm to 65 cm 45 cm to 75 cm Ball Diameter User Height 45 cm (17.7") 4' 6" to 5' 0" 55 cm (21.6") 5' 1" to 5' 7" 65 cm (25.5") 5' 8" to 6' 1" 75 cm (29.5") 6' 2" to 6' 7" .tube-color-chart { border-collapse: collapse; font-size: 15px; margin: 0; } .tube-color-chart td { border:solid #ddd 1px; padding:0 15px; margin:0; font-size: 12px; } .tube-color-chart th { background-color:#555; padding:10px 15px; text-align:center; color:#fff; } .tube-color-chart .td-res { background-color: #eee; color: #000; width: 110px; } .tube-color-chart .td-col { height:30px; width:30px; border:none; }