Using your Deejo Polynesian - style knife is straightforward. To open it, simply push the liner lock and unfold the blade. When you're done, close it by pushing the liner lock in the opposite direction and folding the blade back. Keep in mind that this is a sharp tool, so always handle it with care and keep it out of reach of children. For maintenance, after each use, wipe the blade with a dry cloth. If it gets wet, dry it thoroughly to prevent rust since the steel, while durable, can still be affected by moisture. The coral wood handle is beautiful but can be damaged by excessive moisture, so avoid leaving it in damp conditions. Periodically, you can use a small amount of food - grade mineral oil on the handle to keep it looking its best.