This Earth Flag Pin is the 1" diameter pin design is digitally printed on stainless steel, has a smooth epoxy coating. "The Blue Marble (as the design is called) "is an image of Earth taken on December 7, 1972, from a distance of about 29,000 kilometers (18,000 miles) from the planet's surface. It was taken by the crew of the Apollo 17 spacecraft on its way to the Moon, and is one of the most reproduced images in history." (Description by Wikipedia). These pins are the best on the market and the quality is top notch. We stand by our product and trust that you will fall in love with our pins. Additional Details ------------------------------ Product description: This Earth Flag Pin is the 1" diameter pin design is digitally printed on stainless steel, has a smooth epoxy coating. "The Blue Marble (as the design is called) "is an image of Earth taken on December 7, 1972, from a distance of about 29,000 kilometers (18,000 miles) from the planet's surface. It was taken by the crew of the Apollo 17 spacecraft on its way to the Moon, and is one of the most reproduced images in history." (Description by Wikipedia). These pins are the best on the market and the quality is top notch. We stand by our product and trust that you will fall in love with our pins.