Get ready for thick, throbbing erections with an easy press of a button! This Classix® Auto-Vac Power Pump boasts a hands-free automated motor that powerfully enlarges girth and expands length. The ultra-stretchy Elite Silicone donut creates a comfortable air-tight seal as it snugly encircles your shaft. With the simple press of a button, the vacuum suction teases your penis to a long-lasting, rock-hard erection.

The clear vacuum cylinder allows you to see your growth! The thick, heavy grade acrylic tube is marked with metric graduations to measure your results.