TRYMAG Keychain Magnets for Testing Brass, 4 Pack Neodymium Pocket Keychain for Purse with Strong Magnetic Rare Earth, Gold Silver Jewelry Ferrous Metals Test Magnet Hanging Keys Holder

Pros: Strong, lightweight, keychain, 2 ea Cons: none

What can I say they're strong magnets and they work great

Not as strong magnetism as some other small magnets I own, but this is a good quality product. I use these all the time as a fire alarm tech, to test detectors. The Keychain is convenient for keeping the mag handy or attaching to a pole. They could be stronger, as I have others that are, but for the price to get 4 of them, its a good value.

These TRYMAG keychain magnets may be small, but they’re definitely mighty! Perfect for anyone who works with brass, metals, or just has a habit of dropping tiny screws under the couch, these magnets latch onto metal with the enthusiasm of a dog spotting a squirrel. They’re lightweight and compact enough to clip onto your keys or tool bag, so you always have one on hand. The strong neodymium power means they won’t give up on their metallic mission easily—they’ll cling to anything metal like their life depends on it, making it super satisfying for DIY projects or testing. But beware: their love for metal knows no bounds, so if you accidentally drop one, it might just make a break for the nearest metal surface. Pros: portable, strong grip, and handy for small projects. Cons: very easy to misplace, and they can be a little too clingy with anything metallic nearby.

Hooked on my work key ring so I can activate the E-Band monitors used for Transport. It’s works great. Plus it makes it easy to check different metals when not working on the clock. It is also a very strong little magnet, can use it to hang my keys eye level in the shop.

Handy. Affordable. Strong.

Fine magnets for checking for fake coins. Quality - key rings were soft metal junk, needed to replace as they bent to easily. Overall the magnets seem good.

If all u want is a refrigerator magnet this will work good for you, if you’re after a strong magnet not so much

Perfect for my need. I drive forklift and have several keys to tool cabinets I need to hand out in a hurry and I can keep an eye that I got them back when they’re attached to the crossbar at eye level.

Exactly what I needed for testing silver

前に購入した時の物と先端のサイズが変わっていました 今回はケースも付いてません。 仕事で使いたかったのですが大きすぎて使い物にならないので残念です

Great for testing for ferrous metals when out yard saling/thrifting. Reasonably strong. Also, due to strength, you can get a general idea of percentage. The only downside is that it sticks to your keys. But, whatchya gonna do 🤷‍♂️

Good for testing jewlery, or picking up small stuff, not very strong