The edge drop is a simple redesign of the paint can to ensure that you pour out all the paint into the mixing bucket without spilling. There are always chances of spilling when the paint is poured from the container to any other small container that is used during the painting, with this edge drop the you can pour the paint without spilling. Similar to the spout of a jug, the inward niche on the rim looks to be a practical solution and something that can make a difference.
