http://www.orscrosscountryskisdirect.com/voile-telemark-3-pin-bindings.html
ORS Cross Country Skis Direct Video Productions presents the Voile HD Mountaineer 3-pin 75 mm ski bindings. Video offers a quick review of these backcountry-telemark ski bindings, highlighting the features of the Voile HD Mountaineer. An ideal choice over a system boot and binding set up such as NNN because the 75mm 3-pin backcountry design delivers a more beefy and strong connection along the entire front of the boot for more control and power on the downhills."