For effective damage-free hanging indoors, use Command™ Medium Wire Hooks, they hold strongly to a variety of surfaces including solid, hollow, painted walls as well as other materials including wood, tile, metal, & glass. They’re easy to apply & remove, leaving no holes, marks or sticky residue & suitable for any room in the house. Rehanging them is as easy as applying a Command™ Refill Strip, so you can effortlessly take down or move & reuse them again & again.