Pre-installed fiberglass poles with elastic structure design, no tools required — just lift the four corners of the tent, stretch them to the ground, and secure with 8 ground stakes to complete setup. Tested to be set up by one person in 60 seconds. When folding, simply press the central lock, and it automatically retracts into a 78.7-inch portable bag. Double-layer mesh doors and windows that open opposite each other front and back. The inner layer is high-density anti-mosquito netting (0.15mm aperture) to block flying insects, and the outer waterproof fabric can be rolled up on one side to form a ventilation corridor. 210D Oxford cloth outer tent + PU3000mm coating, with 100% glued seams. No leakage during a heavy rain test (200mm/hour) lasting 2 hours. The laid-out area exceeds 43 square feet. Two people can place 100x72-inch sleeping pads side by side, with a 15-inch equipment area reserved on one side. Upgraded and thickened tent poles (15% thicker than regular models), combined with 4 windproof guy ropes + 8 spiral ground stakes. Displacement is less than 5cm in a simulated level 8 wind tunnel test (35mph). Folded size is only 21x21x4 inches, easy to carry for hiking/backpacking; lightweight design (8.2 pounds) is suitable for multi-day treks.