The insert shows a pack of 5 regular sized titanium rings. My package contained 3 regular sized titanium rings and 2 much smaller typical split rings, similar to the smaller rings found on most proximity keys. Regular sized rings seem very ergonomic and easy to use. I just received it today so can't comment on durability. I'm just very disappointed that I didn't get the full size 5 titanium rings as advertised.
Ultimate Titanium KeySmart: A Must-Have Organizer for Men's Accessories
49 Review
Academia Keychain Keychains Todoroki Double Sided: The Perfect Accessory for My Hero Academia Fans
22 Review
KeySmart Magnetic Keychain Secure Attachment Men's Accessories
63 Review
Stainless Steel Husband Keychain with Stamped Relatives for Enhanced SEO
31 Review