About the product:1. Vacuum Extender Pump : High-quality,easy to operateextender pump sleeve.Designed for more lasting endurance , for bigger, longer and stronger, for easy stimulation.2. How to use : Easy to operate ,check details by pictures below.3. Material : ABS & TPR & PVCFlexibility and elastic,odourless and non-poisonous,health and safe to use.4. Product size :Diameter - 5.5 cm, Hight - 20 cm.
