Unrecognized stalk 1

These controllers seem correct on photo and once in hand, they are light and we suspect that they are not of great quality, but given the price, it must be directed and not to expect better.
This is not the real problem. The real big problem of these joysticks is that they are not detected !!! therefore completely useless !!
over the return is paid at your expense !!! (For the purchase of 2 controllers and their referral, you multiply the purchase price by 2, so better buy directly but more expensive controllers that are detected)