This is a bib that can be used for newborns and 3 to 6 month old’s. Unless you want to put it on an older 6-12 old baby, for cute accessorizing. You can also use it on baby dolls. You can change the size of the bib depending on hook size. Any yarn will work that needs a hook size H/5 mm. This uses very little yarn as it is a smaller project.