# An Important Note About Assembly
The most common mistake when assembling e-NABLE Hand devices is improper tensioning of the non-flexible cords. When the non-flexible cords are tied correctly, the **base of the palm should be inclined about 30-45 degrees** compared to the base of the bracer (the part that goes over the arm). This will allow the recipient to activate the device without having to bend their wrist so far downwards as to cause discomfort.
Here’s an example of a properly tensioned Phoenix v2 Hand: