What is it?

8 sets of 2.5mm thread size Male to Female Standoffs with screws and nuts for the Raspberry Pi. Standoffs have a body of 11mm so they can be used with HATs (Hardware Attached on Top). 11mm is the correct height for the common GPIO headers to sit flush. There may be headers with other heights, please measure first. If you want to use these to stack Raspberry Pis on top of each other, you will need to double up the stand offs to clear the USB ports. Photo with Pi and HAT is an example use. This item is the standoffs, nuts and screws only.

Why did you make it?

I needed some of these, but had trouble locating them. I had a decent size batch made and I have been using some, selling some.