This cute Sumikko Gurashi backpack cover protects your precious backpack from rain, scratches and dirt.Water repellent treatment protects against rain and dirt.(*It is not waterproof.Backpack recommended chopper size: H 18.7 x W 10.4 inches (47.5 x 26.5 cm). *Please check the size.Compatible with A4 large and wide type sizes that can fit A4 flat files.(*Cannot be installed on A4 regular or half cover types.Comes with a cute Sumikko Gurashi reflector that will glow when you hit the night light.