l just got some blades iv been skin for 5 years but l ahve no clue how to put these things on theres 2 metal cup lookign things that go on the boot but l have no clue what to do thanks .

There should be two metal hoop style clips at either end of the binding. Slide the back of your ski boot into the back hook making sure the hoop goes over the top of the ledge at the back of the boot. Now pull the second clip onto the front of the boot. There should be a lever attached to the front hoop, pull this down towards the boot securing the boot in the binding.

Have fun.