Slow Cooker Liners 13"X21"

First of all, these are as advertised: They are liners to help make clean up easier. That said, they *can* leak so expect to do some clean up still. And, as others have said, being tempted to use them as a bag/sling to remove food from a crock can end up in disaster. There's only four in a box, so they are rather expensive (at least here on Amazon). Lastly, they have no self-sealing mechanism, like a zip-top for transport/storage... but then again since they leak you probably wouldn't want to use them for that anyways. This is one of those products I was convinced I would love before I even used it. The concept is so simple that how could they screw it up? Well, they can leak. Yes, clean up is a lot easier anyways, but any leak means the product didn't live up to its claim. Next is that it is inevitable that after cooking you will temped to pull the food out using the bag and store the leftovers. Why not make these heavy-duty with a sealing top? Such a basic improvement would have knocked these out of the park. I also expected more than 4 in the box. The box felt mostly empty and that's because, well, it was. I had to do a double take to notice that, yes, it was only supposed to contain just the 4 bags. For an avid slow cooker fan, that's not going to last even a week. As a last note, my box seemed to have been involved in some minor glitch on the packaging line. One of the bags was covered in glue that was probably used to seal the box and there were several of the same recipe pamphlets enclosed. (Am I supposed to hand them out to friends? ;') Three stars for doing just barely what it was advertised to do.