Material: Color: as the picture shows Package weight: 80g Soft Are Also For Studios And Instructors To Use As They Are Commercial Quality And -, Meaning If The Were To Be Punctured, It Wouldn't But Slowly Deflate - Providing Clients The 9-inch (23 Cm) Is -slip Offering Excellent Grip. This Soft Is Also For Studios And Instructors To Use As This Is A Quality And -. Note: Uninflated Yoga Balls. Inflation Method: Pull Out The Plug, And Then Insert The Blow Pipe Into The Air Intake Port. The Air Can Be Filled With The Mouth Or The Air . When The Is Full Of Air, The Plug Is Quickly Into The Air Intake Port. Stability Make Your Work More Challenging By Providing Resistance: Use Under The Lower Back For Suppler Or Between Knees, Ankles Or Hands. Ideal For Pelvic Floor Exercises, The Will Enhance Your Workout And Helps Develop Strength, Endurance And Concentrations As Well As Promoting Relaxation And Coordination Soft - Helps Develop Strength, Endurance And Co-ordination - Good For Concentration And Relaxation - Ideal For Pelvic Floor Exercises - Material: Latex- DINP - -slip - Factory Tested As At 102kg