Bracelet where info can be changed

I saw these on QVC awhile back and they sold out before I could get one, they do however have a wait list and I'm planning on buying one. If you go to http://www.qvc.com and type in medical id bracelet in the search feature it will take you to the page ( direct linking to a specific product from here doesn't work) anyway, they have both gold and sliver tone available in bracelet style, charm bracelet style, and necklace. They have the standard med symbol on the front. Flip it over and you can unscrew the plate and it has a paper inside that folds accordian style. Would make it MUCH easier than engraving I think to keep information up to date in the event of changes in your health and medications. They are also water proof so no need to remove for showering swimming etc.