"gray structure" image online crop
"gray structure" image original width is 4000px, original height is 2135px, you can crop it to any sizes with width less than 4000px and height less than 2135px. drag area with blue border below to select which to crop, double click dark area to toggle "drag" and "crop" mode, use your middle mouse button to zoom in or zoom out, then click blue button to download cropped image.
Click here to download cropped image