Improve your erection and performance with this Automatic Penis Pump & Masturbator with digital pressure meter and single speed vacuum suction. The vacuum also helps to get and maintain an erection in case of erectile dysfunction. Transparent cylinder with size marks. With the extra sleeve the pump can be used as a masturbator. Including penis ring. Requires 4x AA batteries, not included.Automatic Penis pumpDigital pressure meterTransparent cylinder with size marksIncl extra vagina sleeve to turn the pump into a masturbatorIncluding penis ringMade of ABS and TPECylinder length 20 cm, width 5,9 cmRequires 4x AA battery, not included