Black Mountain Products professional-grade exercise balls improve your core strength, balance and overall agility. Black Mountain Products exercise balls are designed with dense walls for the ultimate support and durability, and are weight-rated up to 2000 lbs. Size Options45 cm( 5′ and under)55 cm( 5′ to 5′ 6″ tall)65 cm(5’6″ to 6′ tall) AND75 cm( 6′ to 6 5″.
