It's heavy. I was very excited to try them out. But they have inconsistent polarity and weak magnets. Close, but I'd pass if I could do it again. The magnets aren't that strong. So if you twist your keychain, they could fly away. Do the magnets grab everything in the drawer, in the trouser pocket, other objects on the bunch of keys? Finally, and most annoyingly, the magnets have a male/female interlock. BUT they didn't sync the polarity of the magnets to the male/female side. For example, I used the female sides for our car keychains and the male sides for our house/work keys. Ideally, my wife can take the house key with her and attach the key fob when she takes the car. House keys are both female, car keys are both male. But the polarity of the magnet is reversed, so it won't work. Stupid.
KeySmart Magnetic Keychain Secure Attachment Men's Accessories
63 Review
TISUR Titanium Keyring with Side Pushing Design - Stylish Men's Accessory in Keyrings & Keychains
31 Review
Titanium Keyring by BANG TI: Easy-to-Use Operation for Ultimate Convenience!
50 Review
Carry Your Love For Firefly Everywhere With QMx'S High-Quality HD Key Chain
34 Review