Grow a bigger, harder erection with the latest in pump technology. Reach your full performance potential, measure your progress, and fine-tune the pump setting that's right for you!Slip inside the soft silicone sleeve and get circulation moving into your shaft with push-button ease –– safely & incrementally. A digital display lets you ramp up or decrease pressure instantly. USB rechargeable. Dismantles for easy cleaning Smart penis pump for harder erections Draws circulation to penis safely & incrementally Choose from 2 modes: Intelligent & Manual 5 different pressure pre-sets: from low to high Digital display scientifically tracks kPa (kilopascal) pressure Clear tube shows growth in inches & centimeters 1 creamy-smooth silicone sleeve provided 1 extra silicone O-ring provided 12.25” long, 8.25" insertable, 3.08" wide Tube comes off for easy cleaning Rechargeable, 3-5 hours of play per charge, USB cable & instructions included Suggested use: about 15 minutes a day