Features: brand new and high quality Durometer: It is designed to test the soft rubber hardness, printer roll and other elastomer material. type One used in general rubber, synthetic rubber, soft rubber, multiple fat, leather, wax etc. How to use: Before the test, you shoulder check the pointer to make sure that it is the zero point in the free state. Then you need to turn the surface to align to zero if the pointer deviated. and then press the hardness to the measured items. User Notice: Thickness of test specimen >6mm,no more than 3 layers. Test 3 times and calculate the average as test result. Specifications: Needle length: 2.5mm Flat cone point: f0.79mm diameter Dial Scale: 0-100HA Size: 76.2x53.8x26mm/3x2.12x1.02" Quantity: 1 Pc Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the different display and different light, the picture may not reflect the actual color of the item. Thank you! Package Contents: 1 x Tire Durometer