C-Thru Ruler Co-Lettering Guide Set. Great For Making Signs, Posters And More! These Letter Guides Let You Stencil Perfectly Shaped Letters And Numbers Each Time. This Package Contains One Large Guide With 1-1/8In Letters And Numbers (10X6In), One With 7/8In Letters And Numbers (7-1/2X4-1/4In), One With 1/2In Letters And Numbers (6X2-1/2In), And One With 3/8In Letters And Numbers (6-1/2X1-3/4In). All Are Made Of Durable, Flexible Plastic. Imported. Warning: This Product Can Expose You To Chemicals Including Di(2-Ethylhexyl)Phthalate (Dehp), Which Is Known To The State Of California To Cause Cancer And Birth Defects Or Other Reproductive Harm. For More Information Go To Www.P65Warnings.Ca.Gov