CenteringCentering is perfect on both axes, with borders measuring equally on all four sides and no perceptible offset in any direction.
CornersAll four corners are sharp and structurally intact, showing no whitening, fraying, creasing, or wear of any kind.
EdgesAll four edges are clean and uniformly smooth, free of nicks, chips, roughness, or any loss of material.
SurfaceBoth the front and reverse surfaces are free of scratches, scuffs, creases, dents, staining, print defects, or print-line breaks.