【Instant purchase OK!】 Thank you for viewing. Please read the profile. ⚠️ This item's back strap cannot be removed! Please be aware! ⚠️ This is a handmade key case. It can be attached to a school backpack with a carabiner. Recommended for elementary school children who have started carrying keys. It has a strap 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 length is 70 cm. Attach the key to it, and then pull the key and extend the reel, so you can unlock the key without removing the key case from the school backpack. It has a gusset, so keys can fit in comfortably! ☆ The color of the actual product may be slightly different from the photos, but please understand as it is taken by an amateur. ☆ The pattern may appear differently from the images depending on how the fabric is cut. Please understand beforehand. 【Size】 Approximately 10 cm long x 5.5 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. ☆ The ends of the acrylic tape of the fixed belt are heated with a lighter to prevent fraying. There may be discoloration, but please understand.