Overview

This is a sturdy double-sided shower hook.  Great for towels, wash cloths, etc. if you don't have a towel bar nearby.  I designed this to fit my shower which has a width of just under 1".  

I designed the hook to be non-slip by virtue of there not being any curved areas where the towel is hung on the hook.  The straight edges and corners allow for better grip.

Scaling

The internal width of this model is 1", which means it'd be straightforward to scale it to whatever your shower's width is (if your shower is 1.5" wide, you'd scale this to 150%, for example).

Recommended Print Settings

• I printed these with PLA, but PETG should also work fine.
• I used 30% infill for strength.  You could go more or less and be fine, though if you scale up, I would increase the infill.
• I used 4 vertical shell perimeters.  This may not be necessary, but I figured it'd help with strength and durability.
• The included .3mf file has these settings already applied.

Design

I designed this model in Tinkercad.