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FEATURES£ºRubber 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, The dial scale is clear and the degree is more intuitive and convenient. EASY TO USE£ºRubber tire durometer is easy to use, accurate measurement, easy to carry, and stable, practical and strong. SPECIFICATIONS£ºDial value: 0-100 degrees; Pressure needle trip: 0-2.5 mm; Pressure needle end pressure: A/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 * 52 * 22 mm/3.07*2.05*0.87inch; Weight: 200 g THREE TYPE£ºType A is suitable for general rubber, synthetic rubber, soft rubber, poly fat, leather, wax etc; The type O is suitable for the porous materials made of foaming agent in the plastic; Type D is suitable for general hard rubber, resin, acrylic, glass, thermoplastic rubber, printing plate, fiber etc. NOTE£ºWe strive to provide you with the highest quality product and the best customer experience. Your nice comment on our product page will be a great encouragement to improve our service. if you're not entirely satisfied, please just feel to us at any time.