Every couple of hours they unveil a new knife. They throw the cards out into the air and people have to grab them. There are only as many cards as they have of that particular model. If you catch it you can buy it. If you don't catch you don't buy. If I learn how to post video I have a short clip I will send.
Thanks for letting me know. If you put your video on Youtube, you can link it in your post under full reply editor.