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

The Toe Adjuster Strap F1.0 XL is designed specifically for use with CLEW Freedom 1.0 bindings. 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. 

If your bindings were previously equipped with toolless screws (which differ from the current screws in the Ankle & Toe Adjuster Screw Set F1.0 in the spare parts shop), you will need to purchase the Ankle & Toe Adjuster Screw Set F1.0 separately to ensure proper installation.