This kit is A Must Have for all serious sword collectors. Why do you need to buy this cleanning kit? All metal parts of your sword should always be covered with a light coating of oil to prevent rust. Your sword comes with either a light plastic spray or a heavy coating of grease to protect the blade in transport across the ocean. Instructions for cleanning your sword: Step 1: Use a sheet of harai gami or erufu to remove oil and debris from the blade. Please hold the sharp edge away from you while you are working on the blade. Step 2: Tap the uchiko lightly against the blade. Continue tapping all the way to the tip of the blade. Step 3: After powdering the blade, use a clean harai gami or erufu to polish the blade in a circular motion. Repeat until the powder is dissolves. Step 4: Repeat Steps 1 to 3 for the other side of the blade. Step 5: Apply a few drops of oil along each side of the blade and use a piece of harai gami or erufu to spread the oil evenly over the blade. DO NOT TOUCH THE BLADE BEFORE RESHEATHING.