Attach the tension ring onto the vacuum tube by means of a light squeeze.
Apply a small amount of personal lubricant to the opening of the tension system.
Gently rest the tip of the penis in the opening of the tension system.
Move the sleeve up and down the cylinder to create the vacuum; this will draw the penis through the tension system into the cylinder.
After creating the erection, remove the cylinder from the tension system, leaving the tension system in place at the base of the penis.