Dear friends, thank you very much for liking our products. All the marked product dimensions are the dimensions of the cylinder inner diameter. All products are made of molds, so there is a slight error between each product. The error range of each product is 1-3mm.

Instructions for use
Lubricate the inner wall of the cylinder and yourself.
    Insert your penis into the cylinder. The cylinder should remain firmly pressed against the base of your penis to keep air from escaping.
    Slowly begin to work the pump. There will be a slight sensation as air is drawn from the cylinder. For beginners, it is important to start this process slowly to avoid discomfort. Remember to press the safety release valve if the vacuum becomes painful.
    Continue pumping/releasing air until you've found a level of vacuum suitable for you: the penis should look swollen, but should not hurt.
    Now make sure no air escapes (unless needed) and wait 20 minutes. You may need to pump further during this time to keep an appropriate amount of vacuum in the cylinder.
    Once the session is complete, These results are effective for 24 hours, but you may experience permanent results through long-term use. We recommend 3-4 sessions per week.

Penis enlargement pump sizes

    Acrylic Model A1：4.4-22.9cm/1.75-9inch  ;Acrylic Model A2：5.1-22.9cm/2-9inch

    Acrylic Model A3：5.7-22.9cm/2.25-9inch ;Acrylic Model A4：6.3-22.9cm/2.5-9inch

    Acrylic Model A5：4.4-30.5cm/1.75-12inch ; Acrylic Model A6：5.1-30.5cm/2-12inch

    Acrylic Model A7：5.7-30.5cm/2.25-12inch  ; Acrylic Model A8：6.3-30.5cm/2.5-12inch

    The sales link not only includes the complete set of products, but also includes independent cylinder accessories. Please pay attention to differentiation when purchasing. The Ax (xx-xx. x CM) kit is a complete product, but the xx-xx. x CM cylinder is a separate accessory.Soft elastic silicone gasket.Model D is a separate D model soft silicone gasket.

Soft elastic silicone gasket

    Model A: Small size soft silicone gasket with elasticity, suitable for acrylic cylinders of 4.4cm(1.75inch ).

    Model B: Small size soft silicone gasket with elasticity, suitable for acrylic cylinders of5.1cm(2.0inch ).

    Model C: Large size flexible silicone gasket with elasticity, suitable for acrylic cylinders of5.7cm(2.25inch) and6.3cm（2.5inch）.

    Model D gasket: model D belongs to large aperture soft silicone gaskets, suitable for huge penises with a width exceeding 5.6cm/2.20inches. Only a small number of customers need it, and if you need Model D soft silicone gaskets, you need to purchase them separately.

    Silicone gaskets have elasticity and are made of a soft and durable material. The width of the penis needs to be greater than the aperture of the soft silicone gasket. A soft silicone gasket can be placed on the penis to create a sealing space.

    The material is made of environmentally friendly acrylic blocks, which can be used with confidence

Product detail presentation

    Metal tie rod, comfort washer, elastic connecting tube

Easy  Release  Connector  Instructions

    1.To connect the tubing,press and twist the connector at the end of the tube.

    2.When you hear the click,the tubing is fully inserted.

    3.To remove,push the metal tab inward and pull the tubing at the base.Youcan remove the tubing and pump while maintaining pressure in the cylinder.

Pump Instructions:

    Power puller, negative pressure gauge, leather tube, acrylic cylinder, silicone gasket

Pressing the black button will release the air pressure

    The acrylic tank comes with a seal switch, after removing the link pipe can still maintain negative pressure.

About the package: send privately

1.WORLDWIDE SHIPPING. (Except some countries and APO/FPO)
2. Orders processed timely after the payment verification.
3. We only ship to confirmed order addresses. Your order address MUST MATCH your Shipping address.
4. The images shown are not the actual item and are for your reference only.
5. If you have not received your shipment within 45 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction!

About payment:
Buyer pays tutorial below:
https://service.aliexpress.com/page/knowledge?pageId=37&category=1000021991&knowledge=1060062451&language=en