I bought these with my crampons expecting to need them with my large boots but turns out I didnt, but by then I had already opened the packaging so couldnt return them
"The Grivel Long Extension Bar is a 190mm long bar that can increase the size of your crampons so they fit larger boots. The Long Extension Bar is often used to get Grivel Crampons to fit larger ski boots if the standard bar is insufficient."
Here is a link to the website where I purchased them
http://www.facewest.co.uk/Grivel-Long-Extension-Bar.html
Ive also listed them on ebay - looking for £7 posted
