Make it thicker, longer and stronger with The VX4 Pump. For foreplay, penis enlargement, endurance training, or solo masturbation The Pump is a visual stimulator, an erection enhancer and a sexual male pleasure product all in one package. The Pump comes with an airtight chamber, advanced trigger pump, an ultra soft X5 Plus realistic vagina shaped pump sleeve and extra soft pump sleeve. The airtight vacuum chamber is clear for viewing progress. Unlike standard squeeze bulb pumps, the trigger pump design gives you precise intensity control, generates a stronger vacuum and a quick release valve allows you to comfortably remove your penis. Made from X5 Plus for a realistic feel, the vagina shaped pump sleeve embraces the head of the penis and warms your shaft after each pump. Requires 2 AA batteries; not included.