Personalized Mechanical Engineer Gear Baby Bib. Mechanical Engineer text on a gear for the engineer whose mental gears are always turning out new and better ideas. A unique gift design for mechanical engineers and engineering students at back to school, birthdays, holidays or graduation. 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"