Purchase 20 mil thick black vinyl magnet by the roll and save! This black-faced smooth vinyl magnet is 24 inches wide by 10 feet long. It easily cuts to any size with scissors. 20 mil Black Vinyl Sheet Magnet is terrific for making your own decorative magnets with stickers, paint, markers, stencils and much more! Use it for art projects or create magnetic banners, displays and indoor signs.