Vktech Stainless Steel Measuring Ruler 8 Inches Pack of 5 Metric unit 0-20cm on one side and Imperial unit 0-8 inch on the other side Accuracy to 1mm, 0.5mm, other side accuracy is 1/10, 1/16, 1/20, 1/32, 1/50, 1/64 inch. With hole on one side, easy to hang or carry Material: Stainless Steel Total Size: 21.8*2.5cm (L x W)