Personalized Mechanical Engineer Flowers Newborn Layette. It's flowering time in mechanical engineering land with posies made of gears, screws and tubing. A humorous design for gifts at birthdays, holidays and graduation. 100% combed ringspun cotton 5.8 ounce 1×1 baby rib sleeper. 3/8" flatlock binding at envelope neck and cuffs. Back sleeve flap to protect hands. Elastic opening at bottom. Infant: 0-3 Months