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We recommendto use the upgraded version with the ball, which increases vacuum and comforsca

How the water pump works?

The water pump is an external penile rigidity device which uses vacuum technology to improve and maintain erection quality and duration through regular exercise of the penis.

The water pump functions by creating a vacuum seal against the pubic area of the user ,enclosing the flaccid penis.When the pump is pushed downwards against the body,the bellows compre and water is ejected from the end of the pump via the open vae.When released the bellows expand and the vae closes,creating a partial vavuum inside the pump.This causes the penis to expand and fill with blood,creating an erection.Re pumping increases the size of the erection.

Comparison of advantages of water pump and air pump：

The preure created by the air is unstable and creates an uneven vacuum that can cause the penis to bend and bulge.However the preure created by the water is balanced and stable, and as the water drains, it creates an even vacuum around the penis and allows for expansion without damage such as bending and bulging.

X20, X30, X40 Pumps belong to water pumps

X20、X30、X40 water pump size：

X20 pump：1.96inch*7.48inch （Suitable for penile erection length le than 15cm） X30/Max7 pump：1.96inch*8.66inch (Suitable for penis erection length greater than 15cm and le than 18cm) X40 pump：2.56inch*9.84inch (Suitable for penis erection length greater than 18cm and le than 22cm)

There would be some difference as it was measured by hand

Xtreme pump full set

The material is made of environmentally friendly plastic and silicone, which can be used with confidence

Product detail presentation

X20 X30 X40 pump Instructions:

Send confidentially

1.WORLDWIDE SHPING. (Except some countries and APO/FPO) 2. Orders proceed timely after the payment verification. 3. We only sh to confirmed order addrees. Your order addre MUST MATCH your Shping addre. 4. The images shown are not the actual item and are for your reference only. 5. If you have not received your shment within 45 days from payment, please contact us. We will track the shment and get back to you as soon as poible with a reply. Our goal is customer satisfaction! About payment: Buyer pays tutorial below: https://service.aliexpre.com/page/knowledge?pageId=37&category=1000021991&knowledge=1060062451&language=en

About shping
Shping and Packaging All it will be double checked and well packed before sending.It will be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for e areas,it may take a little longer). 

Special Announcement:
Please fill in the correct and detailed consignee, address and phone number in the order. For fast and correct delivery.If you do not receive order within 30 working days,please feel free to contact Customer Service before leaving Negative and Neutral Feedback, we will do our best to help you resoe the problem.TaxNo, you will only pay what is quoted as total cost at checkout, no more. You are not expected to pay any additional duties or taxes. If you are asked by Customs or our logistic partner to pay duties, please contact our Customer Service .

Your 100% satisfaction is very ant to us
If the product is not on good condition, You can return this product within 14 working days, please contact customer service center before returning.FeedbackYour satisfaction is our first priorityIf you receive the order and it is in good condition,we would be grateful if you would leave us 5 star Positive Feedback for the transaction.