Meter Scale Hardwood, half meter - Vertical reading-zero top-EIS-PH0064D offers a thoughtfully designed, durable resource for hands-on learning. Hardwood half meter stick (50cm) Graduated in both centimeters (cm) and millimeters (mm) Ruler Overall Dimensions. 50cm x 2.5cm x 0.6cm Zero top 50cm Hard Wood Half Meter Stick. Graduated in Centimeters and Millimeters.