WHAT IS IT? Just like a toll badge, there's no need to go to the sales point, just go directly to the lifts and pay only for the days you ski!
Why ? Take advantage of a discounted rate on the day pass: Adult 47€ (instead of 52€) / Junior 37€ (40€) / Senior 45.50€ (49.50€) / Veteran 24€ (26€).
An extreme simplicity of use associated with a price advantage and advantages as you use it!