Achieve firmer, thicker erections by enhancing blood circulation! Utilize the manual pull handle to achieve greater size and control! This user-friendly penis pump is both comfortable and effective; simply apply lubricant to the smooth silicone sleeve for easy insertion. Measurements on the side allow you to monitor your progress. Clean with Adam & Eve Toy Cleaner and rinse with warm water. - Penis pump for firmer, thicker erections - Boosts blood flow to your penis - Comfortable soft silicone sleeve at the base - Manual pull handle provides full control - Ergonomic grip for accurate handling - Durable crimp-free air hose - Track progress with measurements on the tube - Clear tube made from sturdy hard plastic - Pump chamber measures 22 cm (8.66) in length and 6.9 cm (2.71) in width