1.:gives you the ultimate marking ,allowing the user to accurately mark to the millimeter.The vernier scale and main scale were designed to slide smoothly into the main body and it fit on to objects perfectly. 3.SOMETHING ABOUT VERSATILITY:measuing tool is absolutely versatile.You can insert a straight ruler and this work as a vernier caliper. 2.MULTI-FUNCTION(MEASUREMENT AND MARKING):with one multi gauge caliper you can do 5 different things! From measuring 45 degrees,90 degrees,depth,width to drawing lines. 4.EASY-TO-REND THERMAL:Each alumium blade is precisely milled with state-of-the-art MCT equipment followed by sanding procedure and finishing Presses. 5.STABLE YET LIGHT WEIGHT:The blade is made of the anodized aluminum material with 2mm thickness.This stable cast aluminum tool plate is sturdy yet surprisingly .It is 30g lighter than regular vernier calipers., Weight: 1.56087281496 Pounds, Manufacturer: HWIREUIGT