Here it is in action.
It opens paint cans, clips on to the can and the magnet holds the brush. Holding the brush keeps the can lid and area clean. I really like this little gadget. It is good for small jobs because you do not have a paint tray to place the brush on.
So if you are not already using one
I am not being paid to promote this product.
Another paint tip:
I had seen this painting trick