This pattern calls for 4 balls of Noro Silk Garden which produced a scarf 61 inches long and 6.5 inches wide (unblocked). Gauge is not important.
Are you new to entrelac? Staci Perry of v e r y p i n k created a wonderful video tutorial based on this pattern. Download the pattern and follow along with her as she teaches you every step involved in the making of this scarf! Tutorial: http://verypink.com/2011/12/22/learn-to-knit-entrelac/