11.6-12 inch:
External size: 13.12 x 9.25 x 1.2 inch(33.5cm x 23.5cm x 3cm),
Interior dimensions: 12.80 x 8.86 x 1 inch(32.5cm x 22.5cm x 2.5cm)
13-14 inch:
External size: 14.17 x 10.24 x 1.2 inch(36cm x 26cm x 3cm),
Interior dimensions: 13.58 x 9.65 x 1 inch(34.5cm x 24.5cm x 2.5cm).
15-15.6 inch:
External size: 16.93 x 12.60 x 1.2 inch(43cm x 32cm x 3cm),
Interior dimensions: 16.14 x 11.81 x 1 inch(41cm x 30cm x 2.5cm).
