【Instant Purchase OK!】 Thank you for viewing. Please read my profile. This is a handmade key case. It can be attached to a school backpack with a carabiner. It uses laminated fabric. It's easy to care for, just wipe it clean, even if it gets a little rain! Recommended for elementary school children who have started carrying keys. There's a belt on the back, so you can secure it to the backpack, and it won't dangle when they run. When you open the zipper, there's a reel-type key holder inside. The reel extends 70 cm. Attach your key to it, and then pull the reel to extend it, so you can unlock the door without removing the key case from the backpack. It has a gusset, so keys fit in easily! ☆The color of the actual product may be slightly different from the photos, but please understand that these are amateur photos. ☆The pattern may appear differently from the images depending on how the fabric is cut. Please understand this in advance. 【Size】 Approximately 10 cm (height) x 6 cm (width) x 2 cm (gusset) ☆The reel extends approximately 70 cm. ☆This is a handmade product. We are looking forward to your purchase if you understand this.