Gym Ball 65cm Centimeter Onix Black With Pump Size:65cm 10spdShifters:Shimano Tiagra CombinationChain:Shimano CN-HG54

10spdShifters:Shimano Tiagra CombinationChain:Shimano CN-HG54

Rubber wraps up the outside for support when moving side to side

150-200h of training time)

Durable resistance mechanism for consistent tension

Gym Ball 65cm Centimeter Onix Black With Pump Size:65cm 10spdShifters:Shimano Tiagra CombinationChain:Shimano CN-HG54Special anti burst structure and weight rated up to 1000 kg (2200 lb)Convenient non slip texture and pump includedImproves core stabilisation and balance, Coreball 65cm recommended for individuals from 165 cm 5 ft 4 to 185 cm 6 ft 1Dual purpose: piece of exercise equipment or sitting solutionBALANCE: Joint stabilisation and core control. Ideal to improve motor coordination and postureFLEXIBILITY: Stretching and body toning. To lengthen muscles and