Initially, I was a little bummed out about this product. Packaging was great, nice heft, looked to be good quality. When I pressed the button however, the knife only opened about 3/4 of the way. I played around with it the first day, working the blade back and forth hoping to loosen things up. By the end of the day nothing had changed. Gave it a little shot of WD40, worked it some more and gave up for the day. The next morning I hit the button and it snapped into place. It's worked like a champ since. May have had a few burrs hindering the opening. That aside, this is a very nice knife for the price. Razor sharp. The tip is very sharp so watch yourself. Thumbs up.