Clitoral Excitement Cylinders prove that pumping is not just for men anymore. Their a great reason to break out the pump and have some fun. Like traditional vacuum cylinders, they apply a vacuum to a focused area, immediately enlarging the clit, increasing blood flow and sensitivity. For those interested in clit enlargement, the pump can be removed, but the cylinder will stay vacuum sealed on the clit, allowing prolonged wear in comfort. Measurements: Approx. opening of .875 inches in diameter; tube is 3.125 inches long; entire cylinder is 3.875 inches long. For a complete package, search for the Size Matters Clitoris Excitement System.