The Pump Worx RockHard Auto combines automatic vacuum control with a simple one-touch operation for a powerful and customizable pumping experience. The AutoVac Pressure System lets you increase or decrease suction using easy push-button controls, while the LED PressureSync Display provides a clear visual guide to your current intensity level. When you're ready to release pressure, simply press the Quick Release button for instant relief. The clear cylinder features easy-to-read standard and metric ruler markings, while the included Elite Silicone comfort sleeve and realistic stroker sleeve provide two distinct ways to enjoy the experience. Whether you're looking for traditional vacuum pumping or a suction-enhanced stroker experience, RockHard Auto puts complete control in your hands.