These stickers go well on a dark-colored background. There is some transparent backing to the sticker surrounding the letters. These stickers should be considered light-duty as they will not hold up to rubbing. For heavy duty applications, cover with 3M clear bra to prevent rubbing off the text. The stickers come as one piece, and need to be manually separated. This is a limitation with the current sticker provider. They are printed on a 6" wide sheet, so the lettering comes out to about 5" long.