HART’s Folding Retractable Utility knife offers the convenience of a retractable knife with the compact size of a folding knife. The quick-change mechanism makes removing your old blade and inserting a new one quick and easy. Depress the liner lock and the knife easily folds with one hand. The integrated string cutter can be used when the blade is retracted, there is also an internal 3-blade storage in the handle. Accepts standard size utility blades with 3 blades and a removable belt clip included.