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Wall mounted collapsible drying racks offer a space-saving alternative to standard laundry hangers, which require lots of floor and closet space. fold down at a 90-degree angle, and most mount on the back of a door (or another flat surface). They usually don't require any extra hardware or drilling, making them easy to set up for anyone. Typically, they're made of sturdy materials like stainless steel or aluminum that can withstand frequent use, but some shoppers prefer plastic, which may be less likely to stain or snag clothing.