Design and Details Hyperlight 7075 aluminum alloy construction Automatic binding with our new T-Stop toe system Semi-auto toe bails and heel bails are available separately for boots without toe welts Heel bail has been optimized to fit A/T ski boots and features 3 height settings for fine-tuning the fit Micro-adjustable linking bar with large and small range settings features a hyperlight screw adjustment Dyneema linking straps (available separately) reduce weight (330 g) and allow the crampons to fold onto themselves for tighter packability Anti-balling plates and carrying case included Torx key for adjustment included