Feature: 1. Safe Material: The vacuum pump trainer is made of safe material, skin friendly, not causing damage to your skin, providing safe and convenient use experience. 2. Ergonomic Handle: The handle of the enlarger trainer is designed to fit your finger width so you can easily hook the handle and adjust the air pressure. 3. Transparent Sleeve: The vacuum extend pump trainer is equipped with a transparent sleeve, convenient to observe the training effect, convenietn for use. 4. Removable Design: The air vacuum pump trainer can be conveniently removed and cleaned, just remove the vacuum pump tube and clean it. 5. Effective Use: The erection trainer device can produce vacuum suction to accelerate blood circulation, can help realize better training effect after a period of time. Specification: Itenm Type: Men Vacuum Pump Trainer. Package List: 1 x Sleeve CUp1 x Pump1 x Air Tube3 x Silicone Ring