Set of Editable square promotion banner template. Black and yellow color with abstract pattern shape. Usable for social media, flyers, banners, and web ads. Flat design vector with photo collage. Shutterstock .eps vector - Set of Editable square promotion banner template. Black and yellow color with abstract pattern shape. Usable for social media, flyers, banners, and web ads. Flat design vector with photo collage. - ID: 1920753995