Sturdy ketchup bottle holder for Idun

Holder for a ketchup bottle that fits bottles made by Idun (Norwegian company). Store the bottle up-side-down to make it easier to empty. Can of course also be used with similar bottles. I've printer this with PLA. 

Features:

• Stores the bottle upside-down.
• Sealed in the bottom in case there is leakage from the bottle.
• Sturdy - doesn't tip over on the side if f.ex. stored in the fridge door.