Personalized Music And Math Baby Bib. Music builds the mind for math with the word music in musical text is a unique design promoting the need for music education. 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"