Benchy Under Shelf Hanger

This is my first ever CAD project and Published item! Feedback very welcome! As I've been printing lots of benchys as I have been learning how to print and model, I was running out of room on my shelf, so i created this little hook to allow me to hang them under the shelf edge. The shelves I have are between 18mm and 20mm thick, and this seems to work well for all of them provided you use PLA for a slight flex on the thicker end. A tray of 9 can print on the A1 in 40mins (47 with prep time) One can be printed in 5m45 (12m with prep) Each, including supports weighs in at 1.03g (0.32m) so pretty efficient on filament and a great way to use up bits of left over filament