You will be amazed by the look and feel of your penis as it grows bigger and more sensitive! This no-nonsense pumping set includes an ergonomic hand pump with a built in pressure gauge, as well as a flexible and durable silicone hose. The bright red tubing connects to a 9 inch cylinder with measurements along its length to show your gains as you get longer and girthier. The optional seal at the base helps you create a tighter and more pleasurable seal, made even better with a little bit of lube. When you are satisfied with your engorgement a quick relapse valve will instantly decrease the suction, freeing your ultra-sensitive penis for more hands-on play. Cylinder is 9 inches in overall length, fits up to 8.5 inches, with a diameter opening of 2.15 inches. Hose is 10.3 inches in length.