These are the OG model, no chincy toe box adjust shenanigans. Skied a couple seasons and don't use them anymore. One aluminum pole protector plate fell off. They're in good working order and are definitely the best skiing tech bindings I've ever used.
They fit nicely on my 105 underfoot skis. I just measured them at a bit more than 120mm open and tuck up to about 100mm when retracted. They should work for a good range of widths.
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