Housing for Vevor personnel guidance system / barrier

Some time ago I ordered a people guidance system from Vevor for Halloween: Product link

Here the belts are embedded in the posts. However, I had two places where I had no room for the post.

I developed this housing so that I could remove the belt with its retraction mechanism from the post and attach it to a fence or post, for example, with the help of my 3D print using cable ties.

The belt with the mechanism can be easily removed with a screw and inserted into the new housing and screwed back on.