Ski boot traction devices allow you to walk confidently and comfortably with your ski boots. Their tapered shape at the tip makes the movement of the foot easier and their asymmetric crampon design makes walking on snow safer.> Flexible and resistant rubber.> Inner frame for better grip on your shoes.> One size> Makes it easy to walk with your ski boots> Protects the outer sole of your shoes Size adjustment:> Check the length of your ski boot in mm> Adjust the ski boot traction device to the corresponding size (round down). The tip of the arrow indicates the size selected. > Screw in with a Phillips screwdriver.Fitting the device on the shoe:> Strap on the ski boot traction, starting from the front of the boot, then pull back to adjust it on the heel.> This product should be stored in a dry place, away from heat and UV sources. It is recommended to check the product every year.