Balance out your training. Improve core strength, overall balance, and—yes—even your posture by adding our TRX Stability Ball to any workout. There’s nothing like the instant core challenge a stability ball adds, whether you’re performing basic crunches or going high-octane with speedy woodchops, for sport, rehab, and overall fitness. Plus, use it to improve flexibility and proprioception (that’s fit speak for coordination and strength, like when doing planks off the ball). Hand-crafted with durable, non-slip vinyl that won’t pop from heavy use. Available in 55 or 65 cm. Product Specifications Available in diameters of 55CM (good for height 5'1" - 5'8") or 65CM (good for height 5'8' - 6'1"). Strong vinyl construction prevents slipping Made with Anti-Burst Technology—stability balls are burst resistant and can withstand 330 lbs Shipped deflated in a box. Includes plastic plug to retain air after inflation. Does not include air pump Why buy from TRX? Industry Leader in Functional Training for Two Decades Endorsed by Millions of Prosumers & Consumers TRX App with 30-Day Free Trial to support every level, every goal Hassle Free Return Policy Free Shipping on $150+
