Very thin ripped easily. I wouldn't try to fill these all the way full because if you do when you try to close them they rip. Also these are what we were given when we wanted to fill 16"x12"x10" boxes as a water protection layer - but they're nowhere near that big! Should've realized based on their capacity but we used 3 bags per box. So only use them for SMALL trash cans. And our box did not have the twist ties that it said were included.