The ROTHENBERGER Rovlies cleaning pads are ideal for cleaning soldered connections on copper pipes, in a fast and easy action, without any marking. The flexible pads are also ideal in removing oxide layers, corrosion, surface contamination and any residues containing grease or oil. ROVLIES CLEANING PADS · Completely metal free for reduced risk of corrosion · Can be used wet or dry · Un-affected by solvents Rothenberger Rovlies Cleaning Pads (10 Pack). These cleaning fleeces decrease corrosion damage, have no metallic abrasion, and can be used wet or dry. They help to remove corrosion, oil and grease. These are completely metal-free, can be used wet or dry and are not affected by solvents.