Basic Hook with/without open ring

A basic hook that you can print with 1g of filament.It has an open ring if you have something already tied.I use it to keep the mosquito nets of my door a little open to let my cats in and out. None is in direct sunlight.I printet it with PLA and don't have problem but I might suggest a stronger material if you need to leave it in the open and sun.The ring is 4mm and and the body is 4mmx4mm.