Mix Media Art Thick Stencil. 20x25cm, 0.25mm thick. Flexible and strong material. Ideal for 3D effects, spray and mix media.Mix Media Art Thick Stencil. 20x25cm / 7.87x9.84 inch, 0.25mm thick. Flexible and strong material. Ideal for 3D effects, spray and mix media. Thick stencil made of resistant, transparent and flexible material. It is advisable to wash them every time after use before the color gets dry.