The Premium Penis Pumping Kit is perfect for any man looking to add a little something to his sex life. It offers stimulation, instant growth, and potential for permanent changes. Main features enlarges your penis and creates a huge erection. Enlarges your penis with regular use instruction manual included. Enhances sensitivity. Can help achieve better orgasms. For suction play enjoy the pleasurable vacuum sensation. The Premium Penis Pumping Kit comes complete with Premium Hand Pump with Pressure Gauge, Vacuum Cylinder, Leather Cock Strap, to lock in your pumped up erection. While the Pumping kit comes with everything you need to get started, its universal vacuum lock connector is also compatible with our clit, nipple, and pussy pumps. These vacuum lock cylinders can also hold their vacuum even after the pump is disconnected. Sizing: advanced/large cylinder size is 9 inches long and 2.25 inches diameter.