The tails of these paint tubes are specially designed with a translucent but tinted colour material. This is meant to come in useful for colour mixing during painting. Superimposing one paint tube over another helps the user perceive the new colours that can be generated. This is particular conducive for children in the painting process, especially because a child’s colour mixing perception is weaker when they are younger. This will also boost a child’s colour perception over time and keep their interest in painting.