Explore the Size-Up Penis Pump, a clear-cylinder vacuum device designed to let you watch your penis increase in length and girth during use. The set includes a sturdy clear cylinder, a black manual hand pump, two black stretchy doughnuts and a soft, realistic-feeling doughnut. The transparent design adds a visual dimension to your pumping routine, while the doughnuts provide a choice of fit and sensation.

The hand pump attaches to the closed end of the cylinder and features a quick-release button for immediate pressure release. The cylinder accommodates a penis with up to 6 inches of girth. Add water-based lubricant before use, then choose the soft realistic doughnut for masturbation or the black doughnuts for pumping. After use, disassemble the pieces and wash them with soap and water.