Description This digital angle ruler features etched metric and imperial measurement scales on its edge, plus accurate digital readout, can measure both angle and length, for use in woodworking, construction, or drawing. Doubles as both a digital angle gauge and a protractor for measuring all your needed angles. Features -Color: Silver -Material: Plastic -Size: Approx. 21.00X3.50X2.00cm / 8.25X1.38X0.79in -Measuring Range: 0-360°C -Working Temperature: 0-50°C -Precision: 0.05°C -Battery Type: 3 V; -Note: Include Button Lithium Battery. - The ruler adopts super strength engineering material, good rigidity, wear resistance, not easy to deform, not scratch hands. - The product designed come with lock button, easy to lock angle in any position. - Light weight and compact size, easy to carry and store. - With ergonomic design, more comfortable and convenient to hold and use. - Caliper ruler features double scales design, there are both metric (mm) and imperial (inch) on the vernier caliper, clear scales for easy reading. The ruler adopts super strength engineering material, good rigidity, wear resistance, not easy to deform, not scratch hands. The product designed come with lock button, easy to lock angle in any position. Light weight and compact size, easy to carry and store. With ergonomic design, more comfortable and convenient to hold and use. Caliper ruler features double scales design, there are both metric (mm) and imperial (inch) on the vernier caliper, clear scales for easy reading.