The Women in Science Collection celebrates the achievements of the intrepid women who have paved the way for the next generation of female engineers, biologists, mathematicians, doctors, astronauts, physicists, and more! Made of soft enamel, this black and blue Microscope Lapel Pin is perfect for attaching to backpacks, tote bags, jackets, and hats. Size: .63" W x 1.25" H Made in collaboration with Rachel Ignotofsky