Architectural templates are available in many styles to suite your drafting needs. Precision-engraved apertures ensure single-stroke accuracy. Templates come in a smoke grey color with a matte, non-glare finish. Templates feature ink risers to facilitate clean, smudge-free inking and easy pick up and repositioning. Chartpak templates are scratch-resistant and distortion-free. For best results, use with technical pen or pencil. Contains house plans & plumbing fixtures with printed centering lines. Size: 5" x 7". Thickness: 0.030". Scale: 1/4" = 1'.