Triple Ceiling Hook (for Coat Rack)

I designed this triple ceiling hook for my coat rack. I printed them with 25% infill. I noticed that the hooks are a lot stronger if printed with more walls. So maby try 3 or 4 walls. It has been in use for 10 months so far and has been performing very well. The hooks can handle the weight of three winter jackets, one on each hook/arm. For each triple-hook, you will need three 3 mm countersunk screws.