DescripitionAre you looking for a harmless prolong enhancement device? This manual vacuum air pump may be a good choice for you. Made of non-toxic material, it is safe and works smoothly. Totally automatic design, all you need to do is to stop it when you don't want to continue. No side effect and not hurting, it is suitable for most male.Feature- Color: White- Material: ABS and TPE- Size: 7.3x7.3x29cm- Mini USB Interface for Charging.- Powered by built-in rechargable battery.- LCD Display show the specific figure of the condition so that you can know the training process better.- This vacuum air pump physically helping erection will not do harm to body and has no side effect.- Made of non-toxic material, it is safe and works smoothly.- Accurate scale lines on the sleeve for safe operation.- Note: Constriction worn over 30 minutes can bring permanently damage, please be careful! Package Including1 x Vacuum Pump2 x Sleeve