This hybrid design combines the benefits of 10 and 12-point models in one crampon. The points underfoot are short to reduce leverage when used with modern, lightweight footwear while the front and secondary points remain full-length to tackle technical terrain. Dual-orientation of quaternary points improves security on steep slopes, whether descending or traversing and the unique point configuration ensures complete sole coverage of wide boots. The toothed (serrated) points bite well on a wide variety of surfaces. The Grivel Air Tech Crampon features tool-free regulation of the center bar offers two length options to fit a variety of boot sizes (an XL center bar is required to fit boots larger than 11). Four different types of bindings are available to adapt to virtually any type of footwear. Specs: Materials: Chromolly steel Style: Semi-rigid Weight: 888 grams (31.3 oz) Fits: 35-46 Euro Binding Styles: New Classic: Universal New Matic: Semi-Automatic Cramp-O-Matic: Step In, Automatic