Curtain Track End Stops

This was basically the first thing I ever printed after building my first ever 3D-Printer.
These things don't cost much and it's not cost-time effective to print them, but I wanted my first "create-something-useful-challenge" to be not that discouraging and difficult.
I just measured one of those I got here to create it in CAD (Fusion 360), laid it on the back for printing, used pretty much the standard settings in Slic3r PE because I don't know much about 3D printing yet and it worked.