Phong

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.

Specular Shading attributes (Phong)

Cosine Power

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.

Specular Color

See Common surface material Specular Shading attributes.

Reflectivity

See Common surface material Specular Shading attributes.

Reflected Color

See Common surface material Specular Shading attributes.