Large Crean Mate - Rust CleanerRust Eraser & Tool Cleaner The Niwaki Crean Mate is an incredibly useful tool for cleaning secateurs, shears, and knives, making it easy to remove rust and grime. This handy scouring block quickly cleans resin, rust, and other buildup from blades. Size: 66 x 41 x 19mm To use, add a few drops of Camellia Oil to the blade and rub with the Crean Mate just like an eraser. Its rough texture is effective, but may scratch highly polished surfaces, so test