From the Manufacturer:

Inkpress Metallic Satin is microporous RC photograde ink jet paper with a unique metallic surface layer that yields prints similar to silver halide metal papers.The unique Metallic finish makes it well suited for professional photo reproduction, commercial photography, and any application that requires stunning image quality. Inkpress Metallic Satin features a unique ceramic coating technology that gives this metallic paper greater ink absorption which renders superior image reproduction.

Thickness: 10.4

Brightness: 97%

Weight: 250 GSM