Rhodia's modern Webnotebooks have 90 g, ivory-colored acid-free and pH neutral paper, rounded edges, elastic closure (matching the cover color), ribbon marker, and a rear expandable inner pocket. The hard leatherette cover is embossed with the Rhodia logo and comes in black or orange. Plus Rhodia has expanded the line to include two types of their paper - lined and blank. The famous orange cover dates back to the 1930s - it was a standard hue for cardstock at the time and remains unchanged to this day. Over time, Rhodia has become the most popular pad in France.