Personalized Teacher Back to School Dinosaur Baby Bib. Teacher gift 1st day of school dinosaur Baby Bib - White and Blue Our Baby Bib is rated high in convenience and durability and with a variety of fashionable colors, your baby can be trendy. Mix and match to any outfit. 100% cotton ring spun combed heather colors are cotton-poly. Width 7.75", Length 11.75"