This is a Seiban randoseru (school backpack) sweat-absorbent pad and a security band for the randoseru flap. These items came with the purchase of the randoseru. They have been stored at home for a long time. 【Size】 Width: Approximately 24cm Height: Approximately 28cm Security band: Approximately 24cm x 9cm Thank you for viewing. #Seiban #Randoseru #Tenshi no Hane (Angel's Wing)