Feature: 1. Safe Material: The vacuum pump trainer is made of safe, skin-friendly material that will 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 you to easily grip the handle and adjust the air pressure. 3. Transparent Sleeve: The vacuum pump trainer features a transparent sleeve, making it easy to observe the training process and convenient to use. 4. Removable Design: The vacuum pump trainer can be easily disassembled and cleaned. Simply remove the pump tube for thorough cleaning. 5. Effective Use: The erection training device creates vacuum suction to help accelerate blood circulation, potentially improving 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