Features Better Material Mainly made of high quality ABS material with a sturdy structure, will not deform and is durable for long-term use. HIGHER ACCURACY - Supports easy switching between metric and UK systems, the caliper has a measuring range of 0-150mm and high accuracy. Extensive use: allows a wide application in measuring length, depth, inner diameter, outer diameter, etc., very useful. EASY CARRY The caliper tool is compact and lightweight, and also comes with a storage box for convenient carrying. DIGITAL DISPLAY The caliper is powered by the built-in battery and allows clear digital display, which greatly simplifies your operation. Specification: Item Type:Vernier Caliper Product material: ABS Measuring range: approx. 0 ~ 150 mm / 0 ~ 5.91 inches. Measuring accuracy: ± 0.02 mm. Backup battery: 1 x LR44 180mAh button battery, included with the battery. Power supply battery: 1 x LR44 180mAh button battery, comes with built-in battery. Package list: 1 x caliper. 1 x button battery. 1 x storage box Package List 1 x Vernier Caliper 1 x Button Battery 1 x Storage Box