Size: Approximately 13 x 6.6 cm (excluding hook) Holds one key Maximum key size: Length 70mm, Weight up to 16g This is a key case with a retractable reel that allows you to conceal and carry your important keys. The Velcro (magic tape) cover keeps the key hidden, making it less likely to be lost. This is also good for safety. The Velcro makes it easy to take the key in and out. It has a hook on the top that can be attached to a school bag's D-ring, and a rubber band on the back that can be passed through the shoulder strap of a school bag, making it convenient for children to use. There are marks where the price tag was removed. Although it is new, it has been stored at home, so please refrain from purchasing if you are sensitive to this or if you are looking for a perfect item. If you purchase multiple items, we will offer a discount, so please contact us via the comments section. #SchoolBag #Key #Security #Reel #LostPrevention #KeyCase #RaymayFujii