The image is a patch or badge with a green background and a black border. On the top left corner, there is a text that reads "Gren Bat" in white letters. Below the text, it reads "20". On the right side of the patch, there are two white embroidery designs of a grenade with a flame coming out of it. The grenade is in the center of the shield, with the number 20 on the bottom right corner. The patch appears to be made of fabric or a similar material.