EASY INSTALLATION MUST HAVE WOOD TRIM. All you need is a hammer, the included left corner bracket and right corner bracket, and windows with a depth of at least inch. Then just place bracket, tap in, and hang curtains. Its as speedy as that ^ STURDY AND DURABLE These heavy duty rack holders support up to 20 pounds, making them safe for heavy drapes and in homes with kids, families, and pets. They go up and stay up without a hitch ^ ZERO DAMAGE Enjoy this window aligning collection that is ideal for renters, frequent movers, or anyone who doesnt like wall damage.^ proud to be a family owned and operated business with all operations and manufacturing based in the USA. Family values influence everything we do, from product quality to customer experience.^ AS SEEN ON SHARK TANK made quite the impression when it appeared on the hit show Shark Tank. See for yourself what got Lori Greiner, Mark Cuban, and the rest of the Shark Tank crew talking