They're very similar to the BM economy line except that they tend to come out of the box quite tight which seems to be due to excessively thick power coating inside the joints. That wears out quickly and they settle in and become quite nice. Then, they crack at the top of the handle where the pin goes in and fall apart. BM's economy line would splay at the top and the pin would fall out. You could take them to the factory and they'd reassemble them, but since the zinc used to cast the handles is quite brittle, the cautioned against any serious use for such a repaired knife. On Jaguars (another respectible brand), on the other hand, the pin actually breaks, You can repair this yourself. For a discussion of this, refer to the Bali Song Online thread which is currently active. Mike, your gracious innkeeper here, imports a line of butterflies under his Dragon Forged name. He offers a lifetime warranty. I haven't tried one yet to know how they break. After years of almost daily play, working on the most demanding tricks, my favorite BM 45 just keeps going and going. Well worth the extra price.
Chuck