5oz Tube Of Emery Compound For Removing Scratches, Rust, Corrosion & Burs. This is a new tube of emery compound. Used on iron, steel and hard metals for coarse buffing and removing scratches, rust, corrosion and burs. Do not use for gold, silver or plated articles. Perfect for students, jewelers and crafters. Eliminates the mess and does away with broken bars. This peel back cardboard tube exposes only the amount needed. The tube contains approximately 5 ounces (141.7 grams).