The modern clamp essential for any handyman! Very easy to use, not too big or too small, it will suit most situations. The tightening is effective, and above all, it is possible to handle this clamp with one hand, which is a real advantage! Tightening is done quickly by repeatedly operating the blue handle, and untightening is done instantly by activating the yellow lever. The jaws are very large and covered with a plastic material to protect the enclosed parts. To avoid any situation, I suggest you take 2, they can always be used:) I even managed to use them as a jack to lift a board resting only on the lower jaw, really super useful!