Description:Get back to the basics by strengthening your core muscles with our balance ball. Our ergonomic, non-toxic, and anti-burst fitness ball keeps your spinal alignment and core strong by enhancing your body balance and awareness. Ideal for the athlete of any level, this fitness ball will focus on your core muscle areas to boost stability, balance and strength. A foot pump is included and users need to inflate it when the item comes to you, it merely takes 5 minutes to get it fully inflated. Specification:Product Weight: 11 lb.Product Color: Blue; Pink; Purple Ball Diameter: 20”Base Diameter: 23” Package List:1 x Balance Ball 1 pair x Resistance Band1 x Foot Pump4 x Air Plugs