For A Better Using Expereince:
1.Carefully check the black stopper exits for a better pumping experience.The stopper will stop air from leaking out.
2.No need vigorously pumping,gently squeeze the valve for easy inflating or deflating.It takes 5-8 mins.You could choose your desired firmness level (you will feel hard while seating if you fully pumped)
3.Insert the plug into the valve for preventing air leaking out and bringing more comfort while seating.
4.Gently squeeze the valve to easily and fast deflate for convenient storage.
5.It is recommended to inflate the cushion on a regular basis to ensure a pleasurable seating experience. .