This is a mount for mounting a Reolink E1 (Pro) camera to the wall. The mount can be used up and down.
The holes for mounting to the Reolink mounting bracket are 3mm, the ones for mounting the mount to the wall are 4mm. If you use 4mm screws, you might want to drill the hole to 4 mm to prevent cracking of the part when screwing it to the wall.
The author marked this model as their own original creation.