Made of safe non-poisonous material, safe and reliable. An ideal product to strengthen men’s function and control your drive. It would be perfect experience to combine with lubricant! 1. Put lubricant on the peniss and then fit on a soft rubber plug. (Use first in small, then in the medium, at last in large.) 2. Insert the peniss into the vacuum tube, use the manualtype ball valve to let out the air inside. Step by step, until the peniss is filled with feeling of hyperaemia. 3. After being swelling disappeared, open the vacuum tube discharge air valve to complete an intensive training. 4. Take out the peniss from the vacuum tube. 5. To further strengthen exercise to the peniss, can repeat the above Step 1-3. Pump Item Size: Approx. 6.5 * 24.0cm / 2.6 * 10.2in (D * H) Item Weight: Approx. 235g / 8.27oz Package Size: Approx. 6.7 * 6.7 * 24.2cm / 2.6 * 2.6 * 9.5in (L * W * H) Package Weight: Approx. 260g / 9.18oz This product is for individuals and couples to use, please keep hygiene before and after use. We recommend that 10 to 20 minutes every time, 1 month for a period of treatment. For the sake of your health, please do not overuse the product. 1 * Pump
