Improve your erection and performance with this Classic Penis Pump & Masturbator. The vacuum also helps to get and maintain an erection in case of erectile dysfunction. Manual operation with the squeeze ball that has a quick release valve. Transparent cylinder with size marks. With the extra sleeve the pump can be used as a masturbator. Including penis ring.Penis pumpManual operation with squeeze ballQuick release valveTransparent 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 cm