20pcs NFC Tags 215 Ntag215 Blank Cards - 504 Bytes Programmable, Compatible With NFC-Enabled Mobile Phones & Devices, Including iPhone

As far as these go, they work great. It's tricky using ncf tools to figuer out how to put data on them, but they do exactly what they say. This issue is, not with these cards, but with IOS/Iphone. Apple won't let you load them to send contact info. You can only use them to send as a direct link to your website or social media pages. You can enter all your personal information, contact phone number, etc. It won't matter since nothing shows up except you website or socia media. For that purpose, they are fantastic

It work very good for what my daughter wanted it was worth the money

I've bought 120 of these so far. A pack of 50 last year and a pack of 20 + a pack of 50 a few days ago. And only 1 card out of those 120 appear to be non-functioning. My guess is that the chip didn't get added during manufacturing, the chip broke during transit, or I messed it up here at home. Either way, 1 bad and 119 good is a REALLY good rate! I 100% recommend these!

They arrived well packaged and worked as decribed. No issues at all with programming them, erasing them, or anything.

Can write amiibos to these right from the iPhone. Great for kids that want all of the amiibos.

I saw those digital business cards by like ovou and dot but did a little digging and found that you could make your own. Credit where credit is due, thank you Min Hsao Chen from youtube showing me how to do this because I made a digital business card that linked to my LinkedIn account and I brought it to a career fair. Many employers thought it was cool and creative making me stand out among other applicants.To talk about downsides, I found that the card worked automagically 20% of the time. This is when the phone would just read the card and the link would pop up. The other 70% of the time, I had to walk the employer through how to open their NFC reader then the link would work. Lastly 10% of the time either the employer didn't want to do it or the card straight up didn't work (reason for the removed star).Another benefit of these cards is that you have multiple, which means if you lose one, you can just make another. There are many uses and I think this was a great purchase.

Bought these as a gift for a brother-in-law who, like me, enjoys... Games. On a handheld device. Where one might use cards with these specific chips. For reasons that I'm not 100% sure are allowed to be discussed.Did have one dud card in the bunch, but it's my understanding that this is to be expected. Handheld Game Card Crafting is not an exact science.

My feed was full of fancy e-business cards but these do the trick for a 10th of the cost. Using a free nfc writing app and something like link tree or carrd.co you can write and re-write to these cards 1000s of times and have the same nfc business card experience.