Features: Easy to use, accurate measurement, easy to carry, durable and stable, practical and strong. This rubber hardness tester is a measure of sulfur rubber and plastic products of hardness of the instrument. Made of alloy material,waterproof not rust,fine workmanship,durable. The dial scale is clear and the degree is more intuitive and convenient. The connecting device is more convenient to use with the frame. Type A is suitable for general rubber, synthetic rubber, soft rubber, poly fat, leather, wax etc. Type A: Measuring range 10-90HA, Dial value 0-100HA, Needle stroke 0-2.5mm, Needle size: 0.79mm. Specifications: Dial value: 0-100 degrees. Pressure needle trip: 0-2.5 mm. Pressure needle end pressure: A or O type: 0.55 N - 8.06 N. D-type: 0-44.5 N. Accuracy: 0.1 mm. Test force: 0.5 N. Size: 78 x 52 x 22 mm or 3.07x2.05x0.87inch. Package Included: 1 x Rubber Tire Durometer.