Printer Bed/Sheet Support - Fast Print

I was looking for a minimalist print bed support to hold my spares but all designs I've encountered were bulky and would take a long time to print, which led to this.

I've printed this in under 30m with a Creality K1 with PETG, which is 1h30 hours less than the fastest support I could find.

Important: This support cannot hold the weight of the build plates on it's own and must be glued to some corner/wall using double sided tape (on the bottom). Check the pictures.