Pool Lamp Holder

This is a special light holder for special LED lights.
It is made to attach the lights to an inlet or outlet of your quick-up pool and fits only on a special type of LED lights:
Look for the bigger version with 3 AA-batteries and an outer diameter of 85mm.
If you want to buy it, buy some vaseline for the gasket too. ;)
The magnets are not useful to hold the lights in place. They rust and are too weak for playful children.
This part can be slipped over the inlet or outlet of your quick-up pool.
Press the limps together and place the keys in the slots of the light. Try it outside the pool to learn about the function.
I recommend PETG for this part, that is used under water. I would fill parts 100% due to water infiltration. Support or brim is not be needed! Grind the edges smooth if you like your pool! ;)