Blo Pens super activity set 2 in 1 Marker & Airbrush! Create fantastic airbrush pictures! Easily fantastic pictures with amazing airbrush effects! Discover a fun way of colouring! With this super activity set, there are 11 great reusable stencils to create lots of great pictures in bright colours. Just put a stencil on a sheet of paper, blow through the pen and see your pictures appear! Easy to use - Lay stencil onto paper, Choose & spray first colours, Choose & spray others colours, Remove stencil and add spray & other details.