13.3 inches (34.5*24.5*2.5) :used for the 13 13.3 inch laptop. 14.1 inches (36.5*26.0*2.5) : used for the most part 14.0, 14.1 -inch widescreen laptop (note: does not apply to lenovo Y400) . 15.6 inches (39.5*28.0*2.5) : used for the most part on the market 15.4, 15.6 -inch notebook computer (note: does not apply to lenovo Y500). 1.Because of the light and environment, picture colors may be subtle differences. 2. The cloth shall be cut as a whole and the decorative design is music notes style. The pattern distributions on each bag are unique, whichever you received will prevail.