This great USB rechargeable penis pump is a heavenly gift for those who like automatic penis stimulation and enlargement. Designed by great engineers with amazing esthetic gene, this Optimum Series Automatic Smart Pump can deliver unforgettable stimulation for over 80 minutes in low mode and one hour at its highest performance. The stimulating interior with the nubbed chambers inside will allow to please any male even without the suction. Great quality, no phthalates and irreplaceable sensual aftertaste that can barely be compared to any other toy on the market.