Durable MaterialThe door gap measuring tool is made of pure copper, which is not easy to be damaged or bent, and is more durable and can be used for a long time. Vernier Feeler GaugeThe door gap measuring tool adopts a vernier design, which can slide freely on the vernier sliding groove, and easily read the measurement results. Clear ReadingThe measuring range is 1-15mm, and the accuracy is 0.5mm, which can accurately measure the gap, width and flatness deviation of various materials. Easy To CarryThe size of the door gap measuring tool is 17 x 1.5 x 1.5cm/6.69 x 0.59 x 0.59inch, small and light, and there is an anti-lost lanyard on the handle for easy carrying. Wide ApplicationsThe door gap measurement tool can be used to measure fire door gap, door gap measurement, thickness measurement, house inspection, engineering measurement, etc. Specification: Material: copper(body)+plastic(handle) Color: brass(body)+black(handle) Feature: portable, durable Size(approx.): (L x W x H)17 x 1.5 x 1.5cm/6.69 x 0.59 x 0.59inch Package Included: 1 PC x Ruler Note: 1.Due to the light and screen difference, the items color may be slightly different from the pictures. 2.Please allow 1-2 cm differences due to manual measurement.