Back by Popular Demand! The professional quality you trust — at a price you'll love.Our anti-burst exercise ball is the smart, budget-friendly alternative to the Versa BallPRO. Built with high-quality, professional-grade materials, it's designed to keep you safe even if punctured — deflating slowly instead of popping suddenly, so you can focus on your workout without worry. Sold individually. Storage options and pumps available. Pump not included. Features: Anti-burst up to 500 lbs. Promote proper posture, increase lower back mobility, build back and abdominal strength Improve core strength High quality professional grade PVC construction Available in 2 sizes that work for most users - see chart below Black 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 55 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; }