HAZEL & RUBY-Stencil Mask Peel Away Alphabet: Central Park. Create your own subway art style projects with these beautiful and easy- to-use Stencil Masks! Use over and over again. Simply place design, paint and wipe clean. This package contains two 12x8 inch sheets with seventy-seven 1-1/4 inch peel-away letters. Acid-free and lignin-free. Imported.