I wanted a durable exercise ball to use for abdominal strengthening that doesn't need more air every time I use it. This is just what I was looking for.
Jolly Mega Ball by Horsemen's Pride. This heavy duty inflatable ball is made specifically for horses. This durable exercise ball that can be used for enjoyment or training and is a favorite of Natural Horsemanship practitioners. Please note: The Mega Ball and Mega Ball Covers are sold separately.