These little knives are tough and work great. Sharp out of the box. Great 5th pocket knife. I gave them a couple small drops of knife oil like I do with all folders. To flip them open you have to lean the knife against your thumb not your palm. They flip open perfectly. You may have to loosen the pivot a tiny bit with these knives but I didn’t have to with either mine. Great product for the money. Figure about 3w shipping. [Source : Wish]