You can use any of these filters to put the wave flag in a rounded shape. With the colors of Spain in your profile twitter, facebook or instagram or face background. You can also use it to decorate your avatar or profile picture with the red and yellow color of the selection shield.
One of the most used is the heart-shaped format with your background photo as if it were a sticker and in the corner of your photo or yellow and red border that will surround the photo you upload.
You can also select the option to make it the size of a background mobile.