MagnetPAL 3 Pack Heavy-Duty Neodymium Anti-Rust Magnet, Best for Magnetic Stud Finder/Key Organizer/Indoor and Outdoor Multi Uses, Black with Key Ring (SP-MPM3BK)

Very strong magnets - have bought multiple times and recommend

These are very strong and weatherproof. I use them on an outside metal door. Make sure you don't accidentally get skin between two of them.

These are pretty nice little magnets they’re not super strong, but strong enough to hold your keys to your purse or something

Very powerful small magnet! Strong enough to release tag retailer left on clothing. Live this magnet. DEFINETLY Recommend!!!

These are exactly what I needed. They helped me locate the studs in my wall. These magnets are very strong and you need to be careful handling them. They have pinched my skin a few times because they are so strongly attracted to each other. I could see these being useful for many other tasks.