Feature: 1. Safe Material: The vacuum pump trainer is made of safe, skin-friendly material that does not cause damage to your skin, providing a safe and convenient user experience. 2. Ergonomic Handle: The handle of the enlarger trainer is designed to fit your finger width, allowing easy grip and air pressure adjustment. 3. Transparent Sleeve: The vacuum pump trainer features a transparent sleeve for clear visibility of the training process, offering convenience during use. 4. Removable Design: The vacuum pump trainer can be easily disassembled and cleaned. Simply detach the pump tube for thorough cleaning. 5. Effective Use: The device creates vacuum suction to promote blood circulation, supporting improved results with consistent use over time. Specification: Item Type: Men's Vacuum Pump Trainer Package List: 1 x Sleeve Cup 1 x Pump 1 x Air Tube 3 x Silicone Rings