Handhd Briefcase for 15.4 inch Laptop Black 1. Material: nylon2. Multi-layered space design can fully accommodate computers, tablets, data cables, etc.3. Hook and loop fastener design, easy to use4. The back storage bag can store small accessories such as mouse and data cable5. The inside is soft and ffy, does not damage items, and reduces damage caused by friction6. The suitcase strap design can be put on the suitcase7. Waterproof, not easy to penetrate, not afraid of rain and fog8. Effectivy protect the equipment from general scratches, dirt and abrasion9. External dimensions: 13.3 inch 36x26.5x3cm, 14.1 inch 40x28x3cm, 15.4 inch 40x28x3cm, 15.6 inch 42x31x3cm10. Internal dimensions: 13.3 inch 34.5x25x2.5cm, 14.1 inch 38.5x26.5x2.5cm, 15.4 inch 38.5x26.5x2.5cm, 15.6 inch 40.5x29.5x2.5cmNote: The product is only a computer bag and does not contain other items