The 0357BW is an assisted knife, featuring ZT s SpeedSafe system. Simply pull back on the flipper to easily open the knife every time. The blade locks into place with a rock-solid liner lock. A reversible deepcarry pocket clip allows for ambidextrous carry in the tip-up position. After being precision built in ZT s Tualatin, Oregon USA factory, the final product comes in at a value price, perfect for all ZT users.