Feature:1. The ruler body is made of allplastic carbon fiber material, with a comfortable feel and accurate testing2. The caliper has LED liquid crystal display, the response is faster and more accurate3. The product uses 1.5v battery which is more stable and durable, long service life4. The ruler adopts magnetic stripe film scale process, which can provide accurate readings5. The measuring range is 0100mm,with a storage box which is convenient to carrySpecification:Item Type: Digital CaliperMaterial: Full Plastic Carbon FiberScale Process: Magnetic stripe filmDisplay: LCD displayRange: Approx. 0 ~ 100mm / 0 ~ 3.9inUnit: mm/inResolution: Approx. 0.1mmAccuracy: Approx. 0.1mmBattery Model: LR44 1.5V, 165mAH .Package List:1 x Caliper1 x Battery 1 x Plastic Box