My bricks are the right width, I usually have a fairly deep mortar line, but I was only able to attach (barely) one and it certainly wasn't clamped enough to hold anything. Maybe because the front of my stones isn't completely flat? There just wasn't enough "spring" in the clip to hold this clip in place so I'm returning all the packages I bought hoping to use them for hanging Christmas lights.
Mavoro Strong Magnetic Hooks For Hanging. Up To 65 Lbs. Set Of 2 White Magnet Hooks Heavy Duty Magnets, Neodymium 52 Rare Earth Magnets. Rotating Swivel Style Magnet Hook For Refrigerator, Locker Etcโฆ
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Organize Your Space With MHDMAG Heavy Duty Coat Magnetic Hooks - Rare Earth Neodymium Magnets For Home & Office - Pack Of Two.
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25Lbs Heavy Duty Neodymium Magnetic Hooks, 15Pcs Cruise Essentials Hanging Magnets For Refrigerator, Kitchen, Home & Workplace By MIKEDE
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45 Pack LOVIMAG Neodymium Strong Magnetic Hooks - 25Lbs Rare Earth Magnets Heavy Duty For Refrigerator, Ceiling Hanging, Cruise, Curtain & Kitchen!
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