i recently obtained a SOG Kiku folding knife, did a search here and no mention so here goes! Firstly, I love all knives and blades, but I really love this one! It’s not a pen knife, with its 4.6” blade! No main spring, it’s a flipper and it operates smooth as silk. The harder it flips the more tenacious the liner look engages! I sit in front of the TV and my iPad and practice flipping it open as gently as possible. Green micarta scales have a great grip and it’s beautifully balanced! It’s length makes it bit illegal in the jurisdiction where I live, OK it’s a lot illegal here, so I won’t pack it that often in town. That’s OK I’ll carry it in the woods or in the truck on trips.