I have 2 cards. One is hard like a CC with all my info and the centers. The second card looks like it would be from product packaging. It is a Lap-band system patient identification card. It has my name written in and on the back Dr Ortiz name and then a sticker, also from packaging and it also says lap-band system 10.0cm. It states a reference number and serial number. Hope this helps.
The 10.0 cm band can hold 4cc. The larger bands do hold more and they determine the size you need when they go in and see how large your stomach area is. As you lose wt and the stomach shrinks, the band is more apt to slip if it is too large.