About Rossignol BC 70 Ski: Hey I'm Robert Lazzaroni, the Nordic division manager for Rossignol USA. This is the BC 70 Ski - 70 millimeter, that you can go on your backyard unprepared track but also later in the afternoon you will fit in your track on the touring center when it has been dragged down a little bit. It's a full metal edge from the top to the bottom. It has the Positrack, Rossignol exclusive part best for grip and glide, and then a very good protecting top sheet.
