Millimeters & Centimeters Sliding Vernier Dial Caliper for Jewelers, Machinists, Electronics, Auto Mechanics & Measuring. This is a new sliding vernier dial caliper. It has finely honed jaws for exacting inside, outside and depth measurements. Has a large 1 1/2" (38 mm) diameter dial that makes it easy to read graduations. Has a thumb screw adjustment for easy calibration and a thumb roller with lock for ease of use. This is economical and lightweight. Measures in millimeters and centimeters. Graduated in 1 mm increments. It measures up to 150 mm and 15 cm. The caliper measures approximately 9 1/4" x 3" (235 x 76 mm) We work hard to update our descriptions and pictures of our merchandise. As part of a process of ongoing innovation by our suppliers, newer versions of the item shown may be shipped before we are able to complete an update. As a result there may be a slight variation in color and design.