Achieving a perfect seal is vital to having an amazing VacuGlide milking machine experience. Some of our customers found that when changing positions, during hands-free use, or due to various penis size issues, air can enter the stroking cup causing the cup to pop off or requiring a press of the stroking button on the machine to remove the excess air. This simple seal affixes to the VacuGlide stroker's opening and goes on over the existing silicone or latex sleeve to lessen the chance that any air can enter the system during use.
Watch the short video below to learn how it works!