Helix Acrylic & Wood T-Square 24 inch / 60cm (20240) Lettering Guide Standard Value Pack 4 Pack Letter Sizes 1/4 Inches, 1/2 Inches, 3/4 Inches, 11/4 Inches Upper and Lower Case with Numbers and Common Symbols Ink Risers on Reverse Side Prevent Smudging When Using Inking Pen