Hook for towel radiator

A hook for towel radiator Hafa original. (Scandinavian brand.)

Might fit any towel radiator with square rails but the hooks are designed for:
Item number item name
1509940 ORIGINAL HANDDUKSTORK SVART 800X500
1509941 ORIGINAL HANDDUKSTORK VIT 800X500
1509942 ORIGINAL HANDDUKSTORK SVART 1200X500
1509943 ORIGINAL HANDDUKSTORK VIT 1200X500

I searched thingiverse but could not find any hook that met our demands so we made our own.
Designed in Adobe Illustrator and then