These are a sham, unless you got the rest of the gear to make it work. They've been around for years. How about the potassium cyanide ? It's lists under ' other'Putting that Into an envelope and mailing it through the system is bound to get somebody scared.  Holy fuck the anthrax scare a while back was probably just some bloke sending a sample to someone in an envelope in the mail. It ripped open and they tested the white powder inside and the world freaked out. Card skimmers don't work BTW with any card with a chip in it . So, most ATM cards are chipped and the bank has it all taken care of already . This is why they are selling these skimmers here. -> Drug induced retard teenage-wanna-be-hackers are going to buy these thinking they will be easy. Maybe in some 3rd world country where there are no chipped cards. Hahaha These skimmers are no more good. Hey are unloading them here . To suckers.They used to be for sale o. The clear net . They are NOT illegal. They are just card readers. Tiny card readers that store data on a little memory. There are other legit applications for this device such as hotel room doors and warehouses . Look into it . They are still on the clear net and perfectly legal to buy. Yo can also buy the card making machines too. Most hotels have one to make new room keys and membership cards. It's no big deal to have one and print up a few thousand credit cards .  BUT!!! No chips, or holograms . Take care.