10PCS NFC Tag NFC Chips Programmable Keychain Ntag215 Chips Timeskey NFC Tags Amiibo NFC Cards，Black NFC Tags Compatible with TagMo Amiibo and All NFC Enabled Mobile Phones & Devices

Works perfectly~

I made a tag for my dog and attached it to her collar incase she gets lost, one for my keys, I made one for all of my valuables, there's so many uses. I am using a NFC writing program with my phone. Hint, I am not using a (A) phone, don't want to get this review rejected for using brand names) Found a great program in the (PS).

Does not come with instructions or an app that I'm aware of. I had to Google how to use/program/write on them. I set up my wifi but can't figure out how to get my business card and menu on them. Love the variety tho

I’m a freelance photographer who’s on the go all the time changing bags, purses, wallets, etc… and as a result I never have my paper business card when I need them. The type of wallet I tend to use is metal and crushes businesses cards. I found an app (HiHello) that allowed me to create a digital business card and I’ve programmed my card onto 2 clear cards, 1 key chain thing, 2 stickers, and a tiny card, all of them have worked without an issue. I leave one in all my purses, camera bags, wallets, etc… game changing

These worked great in making Amiibo replicas. So many Amiibos are hard to find, and the stickers to me are too small and easy to use (I have lost 2 sets of them already).But these with the keyring strap are perfect! they work perfectly and are easy to keep track of and label how you wish.

I bought this to have more keys for my door locker what reads NFC, but because the resin is to thick, the door can't read it. My phone was able to read though.

Although I haven't linked this to a "business" card yet, I was successful with linking all of the products to my website.

I had 502 bytes to write and the tag would not accept it. My program I use says that it is 492 bytes, which is close but not 502. Otherwise they are great. But since the capacity to write and recall info is the point with these, not being the capacity that they were said to be is a big deal.