Mechanical Engineering Sticker Where can I find other mechanical engineering designs? Expand or collapse section. In addition to mechanical engineering designs, you can explore the marketplace for mechanic, car mechanic, and auto mechanic designs sold by independent artists. What material is this item made of? Expand or collapse section. Individually die cut vinyl sticker. Semi gloss finish. 3 x 4 inch max size includes a thin white border around the sticker. Not recommended for automobile…