where to buy extra large ziplock freezer bags

I am looking for extra large ziplock freezer bags large enough to hold a 6 lb standing rib roast. Does anyone have any idea where I can find these. What do you folks use? Thanks.

Hi @Laurie

I personally use a Foodsaver vacuum sealer. The rolls that it uses can be sized to whatever you are packaging - you heat seal them at each end yourself. Sorry that this doesn’t specifically answer your question, I just thought I’d bring it up to you in case it was something of which you were not already aware. Good luck.