New Grivel Crampons Grivel G12 Dualmatic Evo crampons Dualmatic, with interchangeable front bails for both New-matic and O-matic bindings. Grivel's G12 crampons are suitable for high-difficulty winter routes and alpine climbing. Compared to the "Air Tech" series, the claws are longer, and the second point (second claw from the front) is angled slightly forward, making them suitable for steep slopes. In addition to the Transformer Bail M, a clamp-o-matic bail hanger (narrow bail) is included, allowing you to change the bail to match the type of mountaineering boot you are using. Only mountaineering boots with a heel welt can be used. The heel uses a binding system. The heel section is equipped with a spring heel plate that allows for size adjustment by lifting with your finger. Size: Free adjust Features: Anti-bot included Weight: Approximately 1012g (per pair) Main material: Chromoly