【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 off even if it gets a little rain! Recommended for elementary school children who have started carrying keys. There is a belt on the back, so it can be fixed to the school backpack and won't dangle even when running. When you open the zipper, there is a reel-type key holder inside. The reel extends 70 cm. Attach the key to it, and then pull the reel to extend it, allowing you to unlock the door without removing the key case from the school backpack. It has a gusset, so keys fit in comfortably! ☆The color of the actual product may differ slightly 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 long x 6 cm wide x 2 cm deep ☆The reel extends approximately 70 cm. ☆This is a handmade product. We are looking forward to your purchase if you understand this.