About this 3D model

I needed something to hang mutltiple cap for my son. I didn't wanted to drill hole on walls so lets use the space lost behind the door! Really simple design with two hooks to hang on top of the standard 1 3/8 door (35mm). I used PETG with 6 layers wich seems fine for caps, hats but might not be anought for heavyer cloth. Infill doesn't make much difference with 6 layers because of the width of 3 mm.