If you want very large, very tough balloons, then buy these ones right now. Otherwise, you may want to reconsider. First, these are not 11" balloons. At the point they hit 11" as I blew them up, they still looked nearly black. These balloons were nearly two feet long and ginormous by the time I got tired of blowing them up. I bought these balloons for a stomping game at a birthday party. So I blew them up as big as I could manage because I needed them to pop for the game. Even so, when we played the game, even the adults couldn't pop the balloons. Because I blew them up so large, the kids couldn't even get their legs up enough to stomp on them. The parents ended up picking up their kids under the arms, lifting them up in the air, and stomping them down on the balloons before we could get them to pop.
So... if you want some really tough, bigger than expected brown balloons, order these now. If you want average size brown balloons, or plan on popping them, look elsewhere.