The mark consists of three capitalized letters "STB." The upper parts of the three letters are connected, while the left side of the "S" has three rows and three columns of nine horizontal rectangular solid black blocks that grow from left to right, and the "S" is connected with a rectangular black block as the lower corner. The "B" part has no left vertical, more like a number "3".
Color is not claimed as a feature of the mark.
Trademark: 98281366
