Using your Deejo knife is straightforward. To open it, just hold the handle firmly and use your thumb to release the liner lock. Then, gently flip the blade out until it locks into place. When you're done, press the liner lock again and carefully fold the blade back in. For safety, always keep your fingers away from the blade's edge when opening or closing. To maintain your knife, wipe it with a dry cloth after each use, especially if it gets wet or dirty. Avoid using abrasive materials that could scratch the black titanium coating. Store it in a dry place, and if you carry it on your belt, make sure the clip is secure. That way, your Deejo knife will stay in great condition for a long time.