The Marker Duke Pro EPF 18 is a Freeride Touring ski binding for riders that are looking for a binding they can trust in the most extreme terrain and big jumps. The EPF (Extended Power Frame) gives a wide and solid power transfer to the ski. Magnesium parts create a bombproof package. The Duke Pro is the heaviest touring binding in the Marker line-up, if you do not need it do not buy it. But, if you are looking for a really strong and reliable Freeride binding with touring option, than the Duke Pro is for you.