Triangular outline of four.
Actual image size:
1200 x 1200
Each logo comes as a .zip file that includes hi-resolution versions of the logo in the following formats: .gif, .png, .jpg, .tif, .bmp
3 dimensional, 3-d, 3d, brain, brain teaser, brainteaser, labyrinth, maze, mind, outlines, problem, problem solver, puzzle, pyramid, red, shapes, thinking, triangle, triangular, triangulated