Size Matters Penis Pump Kit with CylinderPump things up! This Penis Pump Kit features a transparent 9 inch cylinder with measurement markings so you can track your progress with each pump. The wide lip base ensures a tight seal, while the flexible hose and quick release valve makes it easy to maneuver and release the pump when you're ready to play. The ergonomic hand pump comes included with a large pressure gauge so you can find the amount of pressure works with your package best. This Pump