Is a material (shader) that represents glassy or glossy surfaces (such as car moldings, telephones, bathroom fittings) with a hard specular highlight.
You can find this material in the Create tab.
The soft highlights on Blinn surfaces are less likely to exhibit roping or flickering for thin highlights than the harder highlights on Phong surfaces. Use the Blinn surface material for surfaces with bump or displacement maps to reduce highlight roping or flickering.
Controls the size of shiny highlights on the surface. The valid range is 2 to infinity. The slider range is 2 (broad highlight, not very shiny surface) to 100 (small highlight, very shiny surface), though you can type in a higher value. The default value is 20.