The most used B4 size delta screen has been bundled together in 4 of the same type. This set is designed for beginners such as "Don't know which tone to use" and "Don't know which tone to buy first." This is a set of 10 types of series that are easy to use in a single set of model numbers, such as a gradient, and pattern. [Contents] Basic net point SE-30.31.33.35 A slightly coarse hole point. Available in a variety of concentrations. Perfect for pop screens.