Personalized Cute Pre-K Preschool Butterfly Baby Bib. Pre-K butterfly comes on Pre-Kindergarten Baby Bib - Turquoise teacher gift. Perfect for end of school gift giving or back to school. graphic c. Ne' Metzger. 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"