Birch Trees Stencil Birch Trees Stencil – Overall stencil size is approximately 5.5″ x 5.5″. Stencil design is approximately 5″ x 5″. Blue sections in image are the open sections. Stencils are 7 mil FDA approved Food Grade plastic, washable and reusable. To clean your stencil simply run your stencil under warm water to rinse away any air brush color or icing. Pat dry between paper towels or a clean cloth. Can be used with royal icing, air brush, fondant, butter-cream, chocolate or any spreadable material. Stencils can be used for many craft projects.