Using the Ramster Survival Knife is easy. You can unscrew the hollow handle to access the survival items like the compass for navigation and fishing hooks for catching food. The sheath has pouches where you can store small items. When using the knife, always hold it firmly and cut with controlled movements. As for maintenance, after each use, clean the blade with a dry cloth. If it gets wet, dry it thoroughly to prevent rust. Use the sharpening stones in the sheath to keep the blade sharp. Remember, this product contains a chemical that can cause health issues, so avoid direct contact with the chemical and keep it away from children.