WD Musical Instrument Collection - Portable/Back Backpack You are also a musician? Then you must not miss this series! 背 The strap can be cut to the right length 📌 Product Information material: cotton Size: about 37x40 cm Cleaning method: It is recommended to wash by hand to avoid vigorous washing. ⚠️ Precautions 1. This series of products will be shipped about 3-15 days after the order is placed. If the holiday is delayed, please contact us to confirm the delivery time! 2. This product is a custom-made product. If there is no major defect after the sale, there is no replacement service!