Size: 1" (One Inch). All of our buttons and magnets are made with high-quality button and magnet parts and using high-quality water-resistant ink. Our buttons and magnets are all handmade, and locally made, here in the U.S. All buttons have pinback closure. Button size is one inch. Pin-back buttons are ideal for backpacks, jackets, or messenger bags. Magnets are ideal for refrigerators, mini fridges, and work, school, or gym lockers! Note: Photo of the back is a "stock" photo. Online reselling or white marketing of any of our products is strictly forbidden.