Review on 🔑 Magnetic Hide-A-Key Holder: Ultra-Strong Magnet, 2 x 4 x ¾ inches - Perfect Key Stashing Solution by Hco Cortes

As many others have found, this is rubbish. They literally fell apart in my hand as soon as I opened the package. The plastic pins that hold the magnets in place are not secured in any way so they will fall out and the magnets behind will fall out. Don't risk using them with your $100+ modern keychains or they'll just end up on the sidewalk somewhere.