The Black Diamond Helio 350 Binding is a touring ski binding with a lightweight construction that gives you the chance to hike up the mountain and slash back downhill with ease. Made with a combination of aluminum and stainless-steel, you'll enjoy less weight as you make your way uphill and a locked-in feel on your way down. Features like the 4 spring Tech toe, 5-position magnetic heel risers and integrated crampon slot give you an easy to use, efficient binding for a whole season's worth of adventures in the backcountry. Features of the Black Diamond Helio 350 Binding Easy Entry System: new toe geometry that optimizes the boot step-in Monolink Technology 1.0: one of the toe arms is spring-less, providing Higher clamping stiffness in addition to a lower weight New Lever Design: the new front lever design provides easier activation by adding a seat for pole tip stabilization during release Adjustable Heel Cover: the heel cover presents an adjustable rotation system to provide the perfect stability U spring is shaped from titanium to assure extreme lightness and durability