Unlike most steel bracelets, which rely on spring pins for micro-adjustments, our NodeX™ clasp allows you to quickly make sizing adjustments on the fly, by simply pressing down on a button pusher on the back of the clasp. This is not only a great feature for quickly finding the right fit for your new bracelet, but makes on-the-fly adjustments a breeze. This bracelet weighs 2.9 oz out of the box.