Absolute thanks to WM. Well the TS-457 Carbon fiber/Color Titanium, Great knife has a nice detent for both front flip and thumb hole and reverse flick. The Materials and the build quality is second to NONE, for what you get look the blade is extremly sharp out of the box, the carbon fiber has zero voids its feel is great, the Titanium has nice colors, the clip works well, the ergos are fantastic. Its there perpritory steel which i've really yet to test in real world situations, seen it do real well on YouTube videos. So let's just say if the heat treat is good then were in good hands. TwoSun is absolutely killing it. They got the best designers, a top notch knife making facility made in the knife capital of China, Yang Jiang Providence. Thanks White Mountain for noticing quality. BUY IT....