Black Mountain Products 2000lbs Static Strength Exercise Stability Ball with Pump Professional grade exercise balance ball Balance ball rated up to 2000 lbs. Includes ball pump and starter brochure B.M.P exercise balls come with manufactures Warranty Size options 45cm (5 and under) 55 cm (5 to 5 6 tall) 65 cm (56 to 6 tall) and 75 cm (6 to 6 5) and 85cm (6 5 or taller)