This is the standard model of Black Diamond trekking poles. I purchased these about three years ago and used them a few times during the winter. I only used them in winter, and since the women's model I'm also selling suited me better (I'm about 170cm tall), I didn't use these very much. Snow baskets are also included, so I think they will be useful in the coming season. Shaft material: Aluminum Extended length: 100-140cm Weight: 268g/pole (according to the catalog)