40" Stainless Steel Measuring Scale Ruler SAE & Metric - Red Engravings Every 10cm Extra-long 40" ruler for drafting, drawing, plans, arts & crafts 18-gauge stainless steel is flexible but won't kink High contrast engraved markings & numbers won't wear off; 0-40", 0-100cm - Bright red engravings every 10cm for quick and easy identification Botton side marked SAE fractional inches by 1/32 & 1/16" Top side marked metric by 0.5mm (up to 10cm) and 1.0cm; hanging hole for easy storage