The fuller in the blade (finger flick it) and 3. The jimped piece on the back end of the blade (almost like front flipping). Finger flick opening is alright. The piece on the back end of the blade (front flipping) was a nice idea and does work but not as well as just using the thumbstuds. This knife is listed as used and has been carried but it does not look to have actually been used.
The blade is clean and the edge is original. The handles do have scuffs on them.
The knife does have a very slight bit of lock stick but that will work out with some actual opening and closing use. This knife comes in a zip up knife pouch.
It is the buyers responsibility to know their local laws. Or US Address sales only.