Our promise

The message at ExtenderStock is very simple. If you buy one of our penis enlargement products and use it as instructed for 6 months, you will get a bigger penis – that is a promise. We have been in the business for many years, and our clinical trials and feedback from numerous customers makes this promise realistic.


See results or get your money back twice

At ExtenderStock we are so confident about the results that our penis extenders provide that we provide all customers with a double refund guarantee. This means that if you do not see any changes in size within 6 months of use, we will pay you your money back twice.

In order to follow our double refund guarantee, you must log your details every week on the interactive training program you are given access to. Furthermore, you must take a before and after picture wearing your extender, holding a ruler up to it. This is only to make sure that the equipment has been used in the right way and with the right attendance of the interactive program.



If you are not 100% sure whether our products will provide you with actual gains, then use 2 minutes to go trough this documentation provided by European doctors. Checkout the center of page 2 here. (The pdf will open in a new window.)


Guarantee & warranty

All enhancement devices sold at ExtenderStock are manufactured by experts and packed by medical professionals. Furthermore, all products follow strict quality assurance guidelines.

All of our products comes with a full guarantee varying from 1 year to an amazing lifetime guarantee. In the unlikely event, that you have a problem with your penis extender, you can simply return it to us and we will replace it free of charge. To see the exact guarantee, please go to the desired product at the product page here.

All penis extender sold at ExtenderStock are 100% genuine and original. Our products are bought directly from the manufactures DanaMedic ApS and DanaLife ApS and sold at the recommended retail prices. If you see the products cheaper elsewhere, be aware that the products can be replicants. Cheap replicants are not usable for more than a couple of hours before they snap.