Personalized Music Booster Hands Baby Bib. Music held up by the hands of the word booster is a humorous design for dedicated music supporters and a fun way to show your involvement. 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"