1. Two fixing methods, copper buckle + webbing 2. Strengthen the stress point, waterproof sealing process 3. Two stitches, strong and beautiful 4. Polyester silver plated cloth, waterproof and tearproof 5. The back of the cloth is coated with silver to enhance the sunscreen and waterproof effect 6. Applicable number of people: 5-8 people 7. Material: lun waterproof coated silver cloth 8. Size: about 5.1 x 5.1m 9. Weight: about 1815g