This is a combined kids' mobile phone case and key case that attaches to a school backpack, recommended for crime prevention. Features: * Integrated key case with a retractable reel. * Allows easy access to keys while the backpack is on. * Can be attached to the shoulder strap with a swivel snap hook and Velcro, preventing it from falling off. * Can be attached to other bags. * The alarm button can be accessed through the alarm button hole. Compatible Models: * SoftBank: "Mimamori Keitai", "Kids Phone 2" * au: "Mamolino", "Mamolino 5", "mamorino5" * DOCOMO: "Kids Keitai", "SH-03M" * Rakuten Mini, Rakuten Mini * hamicpocket * Hamic Pocket * The last photo shows the actual product, with an English tag. * Alarm and neck strap are not included. * If you would like a matching neck strap (500 yen), please let us know before purchasing. * The reel is attached with a double ring, so if it breaks from being pulled too hard, it can be replaced with a commercially available one. * If you would like a D-ring, please select it as an option. Size: Approximately 16cm (height) x 9.5cm (width) x 2.5cm (depth) Material: Water-repellent laminated fabric (not completely waterproof) Notes: * Some items are in stock, but if they are sold out at events, it may take some time to make them. * If you have a desired delivery date, please let us know in advance. Other: * As this is a handmade item, there may be slight variations in color, pattern, and individual differences. Please understand. * If you would like gift wrapping, we will provide it free of charge, so please let us know. * We inspect the items before shipping, but if there are any defects in the hardware such as the snap hook, we will respond immediately (within one month). * We are not responsible for damage to the mobile phone or loss of keys due to hardware defects, so please be sure to check before attaching. * We have confirmed the size compatibility with the above models, but there may be specification changes by the manufacturers, so please be sure to check the size of your device. #SchoolBackpack #KidsMobilePhone #KidsKeitai #KidsPhone #MobilePhone #Cover #KeyCase #ReelKeyCase #KeyHolder