1. Material: PU leather 2. Applicable models: for BBK F5/iFLYTEK/Little Talent (X10, X20)/NetEase Youdao 3. Use: storage point reading pen, stationery 4. Elastic strap design, can be put on laptops or books, not easy to lose 5. Water repellent fabric, more secure 6. Dimensions: 20.5 x 4.5 cm 7. Weight: 23g/pc 8. Remarks: Only storage bags will be sent for delivery, no other!