This is a hook to go over the bar holding sliding glass shower doors. It is good to hang things that need to drip dry and also have air flow, like a wet bathing suit.

This hook fits precisely over the MAAX brand sliding door bar. The bar measures approximately 45mm wide by 56mm tall. The hook is shaped to fit over the slightly curved top of the bar, and has grooves for the small ribs running along it. It took me three iterations to get it right. If you print multiple of these hooks, you can put them together to hold a heavier object. It may even be stronger then the bar itself!