Flow Black arrives as a 12" x 13.4" matte porcelain mosaic in the Flow range. Sarana supplies it with a matte face that holds light rather than throwing it back. In a home it suits kitchens, entry foyers and open-plan living areas. On commercial jobs it turns up in retail floors, restaurant dining rooms and hotel lobbies. Sarana publishes a PEI rating of 4 and Mohs hardness 6 for this range. The nominal size is 12" x 13.4", listed metrically as 30x34cm. It appears in the Sarana Volume 8 catalogue at page 94. It arrives mesh-mounted, so the spacing holds while the sheet is set and it trims down to meet a corner or a niche. Sarana prices it by the sheet.