1. Flexible Adaptation: Offers 155 standard size options. Features a movable aluminum frame with an integrated screen and a dualtrack sliding system for efficient ventilation, improving air quality in basements or enclosed spaces. 2. Durable Material: Constructed with a 4.3 cm wide aluminum alloy frame and 5 mm thick tempered glass, combining lightweight design with strength. The frame resists deformation, while the glass ensures impact resistance, transparency, and durability for lasting protection and natural lighting. 3. Easy Installation Includes tempered glass panels, screw sets, and an installation guide for simple setup. Designed for quick installation without complex tools, it can be embedded into openings and secured with screws and foam adhesive, easily handled by a single person due to its lightweight. 4. Efficient Ventilation: Utilizes a dualtrack sliding system for smooth operation, allowing window sashes to stop at any position for precise airflow control. Enhances natural air circulation in summer and provides insulation in winter for yearround comfort.