High Quality Anti Burst Exercise-Birthing Ball. Using the highest quality material to produce an exercise ball that is safe and burst resistant up to 300Kg. Ribbed design for extra grip and stability. Supplied with a FREE circumference measure and plug remover, the measure simply wraps around the ball and when inflated to the correct height the tape tightens to guarantee size. Height 55/ 165cms and under - 55cm Miracle Ball. High quality anti burst birth ball. Tested and certified anti burst exercises ball. Suitable for all exercise routines for all ages. Anti slip technology. Measure tape and plug remover also included. Batteries not included. Ball, plug, plug remover, tape.