Block Ring Jumbo Sphere By Ooh! Body Art (S21)The Block Ring Stencils work great with negative and positive space to give you fantastic looking clouds; for airbrush or face paint. They work great on face designs and are perfect for tattoo backgrounds. Fantastic with an airbrush, and also work well with a sponge. This new design includes 2 rings and as well as the inner piece. You have tons of shading options. They also continue the texture to the outer edge to give you even more options!