Libranime Astro Boy Anime Luminous Backpack School Bag Shoulder Bag Astro Boy Anime bag. Material:High-grade canvas. Size:44cmx29cmx14cm(17.3"x11.4"x5.5"). After absorbing light, the color of the logo will change in the evening as the picture shown. please buy from our store "Libranime", if you buy from other shops, we do not ensure that you can receive high quality products.