The Rossignol T3 Automatic Touring NNN Ski Bindings are user-friendly bindings that are perfect for classic ski / kick-and-glide cross country skiing in groomed touring center ski tracks. The Touring T3 Automatic binding delivers good stability and ski control. The automatic step-in / step-out mechanism makes it easy to enter and exit your ski boots without having to bend over and fidget with any levers. These nordic ski bindings will also perform well during the occasional off-trail adventure in untracked snow. Compatible with NNN(Rottefella or Rossignol) nordic ski boots. Features: Auto step-in which is easy to open and use your pole or fingers to get out of the binding Step in/out is very easy Interchangeable flex by changing out the rubber bumpers Dual Flex NIS is another option but this is not that option(NIS needs the NIS plate built into the ski) Screws are used to attach this binding to the ski Racing is an option but only classic so not to be used for skating(puts to much pressure on the system) Great for Touring Best used with Classic technique Skating is a No-No with this binding Weight: 305g per pair