Sale web banners. Set of Pop art comic sale discount promotion banners. Big sale background. Decorative backgrounds with bomb explosive. Comics pop-art style bang shape on red and blue twisted background. Ideal for web banners. Vector illustration.. Sale web banners. Set of Pop art comic sale discount promotion banners. Big sale background. Decorative backgrounds with bomb explosive. Comics pop-art style bang shape on red and blue twisted background. Ideal for web banners.