Proworks Anti-Burst Exercise Ball 65cm / 25.5&rdquo; Heavy Duty Fitness Ball with Pump (Purple) Made from high quality PVC; these large, durable, anti burst Proworks Swiss sports balls are available in silver, purple or pink. A dual action hand or foot pump is included. Take your workout routines to the next level! These balance balls can replace your old weight lifting bench and be used with various free weights and dumbbells to improve your stability and form. Great for yoga workouts, sit up / abdominal exercises and stretching after a hard cardio or bodybuilding work out routine. This gymnastic ball can be used while wearing exercise gloves and on a mat. Suitable for use as a pregnancy birthing ball or as part of a physiotherapy health program to help you strike various poses and postures to relieve stress and improve your body and mind. Tired of having a bad back from sitting in that same old office chair? Replace it with one of these big, bouncy balls from Proworks! Its tough portable design means its suitable for indoor and outdoor use.