Bests & Worsts Reviews from Amazon

If I could give these bags negative stars I would. The plastic is extremely brittle and thin. The plastic slide closure tears the plastic even on under-filled bags. The "patented one way valve" is a joke. My regular household vacuum sucked it off it's seal before the bag had even been partially emptied of air. You'd be far better off buying those jumbo zipper bags and pressing on them to push out the air.