Do not use abrasive cleaners on painted metal or collide the bookends together as it may affect the surface finish.
Clean with a slightly damp, soft cloth. To remove dirt and fingerprints, use a quality cleaner formulated for metal furniture. Wipe completely dry with a soft cloth.
Big art books, old school dictionaries, anatomy textbooks. Playful powder-coated steel forms are made to shoulder a mighty load while brightening up your bookshelves. Double as doorstops or one helluva paperweight.