Achieve a longer-lasting and stronger erection with The Classic Power Pump, a finely crafted device designed for performance enhancement, comfort, and easy tracking of your progress. Erection Enhancement: This classic penis pump is designed to help you achieve a longer-lasting and stronger erection. Progress Tracking: The finely crafted transparent cylinder, which is made of ABS plastic, has an integrated measurement scale so that you can read your progress as you use the device. Easy Control: The practical hand pump ensures an easy operation. Safety Feature: The safety valve allows you to remove the vacuum quickly. Sleeve Material: The sleeve is made of silicone, making it soft and elastic. The sleeve fits perfectly around the shaft of the penis and can create a powerful vacuum. Maintenance: The pump is easy to disassemble and clean. Dimensions: Cylinder Total Length: approx. 22.00 cm. Cylinder Diameter: approx. 7.00 cm. Sleeve Diameter: approx. 2.00 cm.