Chalkboard eraser marks a sidewalk with varying degrees of dustiness.
A sidewalk is shown from above with several markings from a rectangle chalkboard eraser. The eraser markings are brighter and pale blue at the top, indicating that the eraser is starting to be cleaned. The majority of the dust in the eraser was shaken off in the first few slams. The markings start as vertical markings on the top close to the left, then fade as they cross the image, and then new markings are seen in the center of the image with a yellow-tinted dust. Some soft diagonal markings are seen on the left side of the image, as the eraser was less dusty at this point. The sidewalk has dead foliage around the top left edge and scattered across the chalkboard eraser markings.