PRODUCT RATING: 4.5 out of 5 (Blank: Not Rated). Click on this link to see more information, images, reviews by real users and alternatives:

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SUITABLE FOR EXERCISE, THERAPY,YOGA – ROLLING, PULLING, LAYING ,BALANCING AND OR SITTING
COMES WITH A PUMP OR CAN USE AN AIR COMPRESSOR OR CAGE BALL PUMP
ADULT SUPERVISION RECOMMENDED (BALL IS SHIPPED DEFLATED)
THIS BALL CONTAINS A INNER VINYL BLADDERS WITH SEATED VALVE THAT CAN BE REPLACED IF DAMAGED
List Price: $49.75