● This item was obtained when my child started attending Kumon, but it has been stored at home unused. ● The main body is thin and lightweight (total weight approximately 360g), and the design has no unnecessary protrusions, so I think it's safe for children to use. ● Reflective material is attached to the flap and sides, increasing visibility after dark. ※ This is an unused item, but it is old, so please purchase it if you understand this. Bag size: A4 size storage possible #Screenshot