Petzl designed the Sarken Crampon for those who crave versatility when heading into variable, mixed terrain. This 12 point crampon features T shaped front points for easy penetration in hard ice, and structural reinforcements on both sides of the frame to create a stable platform. The four rear teeth give you stability while descending down icy slopes, and lateral points give you grip while traversing. The Sarken's linking bar can be set for flexible or semi rigid to adapt to different environments and boot flexibilities. Boots larger than size 46 require the large linking bar sold separately.