Doc Johnson Novelties Optimale Men's Sexual Health and Wellness Power up for bigger thicker erections with the Optimale Power Pump. Watch your growth through the large clear vacuum cylinder featuring a soft silicone sleeve for an air-tight seal a stylish pressure gauge and easy to read measuring guide to monitor progress. The strong auto-pump action is easily delivered with just the push of a button and a quick release valve button allows for customizable pressure. The Power Pump helps draw blood flow to your penis for the ultimate erection increasing your size and sexual satisfaction.