The Ook 15 feet 50 lbs. nylon invisible hanging wire ties and cuts like string but holds like steel. Undetectable to the eye, this clear wire is ideal for hanging pictures and is great for window treatments. Self tying wires that wrap around themselves and stayTies like string, cuts like string but holds like steelUsed to hang pictures, planters and are great for window treatmentsSoft and flexibleHands stay clean and cut freeExtremely strong and invisible hanging wire is undetectable to the eye15' rollHold up to 50 lbs.