This is a sturdy knife. It is pretty lightweight, but all the parts are metal except for the handgrip covers. The metal, however, is very rough like it was stamped out of a press and not sanded down. Everyday use and wear will eventually smooth this out though. The blade comes extremely sharp out of the box. It opens quickly like it says in the description, it is almost too quick to see. It is pretty small and it is great for letter opening or a general purposes. As always with purchasing automatic knives, make sure that they are legal in your area. In some states they are legal to own, but not carry off of your property, in other states they are illegal altogether. Check your local regulations before purchasing this or any other similar product otherwise you may run into issues shipping it to your location.