Features: Made of alloy materials, the thickness gage is resistant to temperature change and crash. Small and easy to carry, can be used to measure jewelry, leather,metal sheets, paper, thin film, wire and similar materials. Specifications: Material:Carbon Steel Color:Gray and White Display: Mechanical Dial Measuring range: 0-20 (mm) Package Size:108 x 66 x 22mm(L x W x T) Model:Thickness Gauge Meter Package Includes: 1 x Thickness Dial Gauge 1 x Plastic Storage Case