The Toe Adjuster Strap that you can adjust with the screw on the toe cap. 

The Toe Adjuster Strap XL F1.0 comes with a new material composition and is compatible with the CLEW® Freedom 1.0 binding models (21,22 and 23).

This strap with seven holes is a bit longer than the standard one and can be used if you require more space in the front of your bindings.