Designed to test the hardness of soft rubber, printer roller and other elastomeric materials Three types optional to meet your general needs: Type A is suitable for general rubber, synthetic rubber, soft rubber, poly fat, leather and wax; Type O is suitable for foam micro-porous materials in plastic; D type is suitable for hard rubber, resin, acrylic, glass, thermoplastic rubber, printing and fiber Alloy material, fine craftsmanship, water and corrosion resistant The device of connection works perfectly with the frame, convenient and solid Clear scale and degree intuitive, easy to operate Description The above rubber hardness tester is designed for testing the hardness of soft rubber, printer roller and other elastomeric materials. The Rubber Durometer made of alloy materials is water resistant and corrosion resistant, so it has a long service life. And the connection device can be used with the frame easily, which will bring you excellent convenience. We provide A/O/D three types, You can choose one to meet your general use needs. Package includes: 1 x Rubber Durometer Note: The data are all manual measurement, please please allow 1-3cm error, due to the light and display difference, there will be some color difference, depending on the physical object received.