Solid pockets of finally well: often disposable bags burst under the pressure of the dough, but not here. Their touch a bit grainy and not smooth assures them a good grip and are thick enough to stand a little, when filling them. I have used both of choux pastry that for creams, fodder and decoration. Their format is sufficient for about thirty small cabbage or 0.5 liter of custard or whipped cream. The very low price: a very good buy.