Can someone explain the new 6-pack can holders I've been seeing recently? Previously, they were the normal plastic rings (the kind we are all told to cut to save the lives of fish) that we have seen forever and are used on both soda and beer. Now it's the larger, heavier plastic kind that sort of encapsulates the entire top of the can. Sorry, wish I had a pic. Why change? The old ones seemed fine and used less material. Something to do with the manufacturing process? Just looks fancier?