This digital shore durometer is is a kind of sophisticated measurement tool for measuring the Suitable for Hard Hardness Rubber and Plastics such as rubber, plastic, leather, multi-grease, wax, Thermal Plastic, Flooring, Bowling balll, etc. And this durometer with type A/C/D 3 kinds of model, hardness is different, D gt;A gt;C. You can choose the type of hardness.Specific reference pictures. Specifications: Material: ABS #43; Carbon Steel Type: A/C/D (optional) LCD Display: 4 digits, 40*18mm (1.57 x 0.71 inch) Probe Diameter: A: 0.79mm C: 2.5mm D: 0.1mm Measuring Range / Graduation: 0~100 HD Indentor Running: 0-2.5mm Indentor press on telos: A, C type 0.55-8.06N, D type 0-44.5N Resolution: 0.5 HD Power Supply: 1.5V-LR44*1 button cell battery (not include) Item Size: 8.4*5.7*2.6cm/3.3*2.2*1.0in Package Weight: 272g/9.6oz Package Size: 13.8*8.5*4cm/5.4*3.3*1.6in Package List: 1 * Digital Durometer(battery not include) 1 * Plastic Carry Box 1 * Manual