“It's what you need if you are not an expert in soldering and want to easily add an GPIO header to a PI zero.
Very easy to use (following instructions available on internet).
It's not cheap (a few plastic pieces) in comparison to PI zero cost , but can be used for several PI zero (using additional male/female headers).
Applied to a PI zero W, it could be a cheaper alternative to PI 3 model for some usages.”
“Everything is there ready, the installation requires firm rubber hammer, Hit at slow pace better to ensure that you are getting the pins flat.
If these are available, I will never solder a GPIO again.”
