Easy to use, accurate measurement, easy to carry, durable and stable, strong practicability. This rubber durometer is an instrument for measuring the hardness of sulfur-containing rubber and plastic products. Made of alloy material, waterproof and rust free, fine workmanship and durable. The dial scale is clear, and the degree is more intuitive and convenient. The connection device and the frame are more convenient to use. Type A is suitable for general rubber, synthetic rubber, soft rubber, polyester, leather, wax, etc. Instructions for use: Put the sample on a strong plane, take the hardness tester, press the needle at least 12 mm away from the sample, and press the presser foot on the sample, and press the needle vertically into the sample until the foot is in full contact with the sample. reading within 1 second of pressure. Measure the hardness value 5 times at different locations at least 6 mm apart and take the average value (minimum 15 mm for microporous materials). In order to stabilize the measurement conditions and improve the measurement accuracy, the hardness tester device should be matched with the manufacturers measurement on the same measurement. Dial Value: 0-100 degrees Pressure Pin Travel: 0-2.5 mm Accuracy: 0.1 mm Test Force: 0.5 N Type: AA Type: 0.55 N - 8.06 N, Color: Silver + Black Material: Metal Dimensions: 78 x 52 x 22 mm/3.07x2.05x0 .87 inches Weight: 200g Package Contents: 1 x Durometer Only the above package contents, other products are not included. Note: Different lighting and display may cause the color of the item in the picture to be slightly different from the actual item. Measurement tolerance is +/- 1-3 cm.