1. Removable Screen: The crossscreen structure ensures durability. This feature allows fresh air to flow in. They are ideal for various applications where you desire some light and ventilation. At the same time, they effectively prevent flying objects from entering the room and reduce the risk of accidental falls for small animals. 2. Lockable Aluminum Sliding Windows: Made of sturdy aluminum with a width of 7.6 cm, waterproof, rustresistant, and capable of withstanding harsh weather conditions. Equipped with a lock. The operational state allows for upward locking and downward opening, making the sliding window easy to open and close. 3. Sturdy, Thick 5mm Tempered Glass: Provides better sound insulation than regular glass. Offers additional natural light while maintaining privacy. One major advantage is that if tempered glass ever breaks, no sharp fragments remain in the frame, making it less harmful to the human body. 4. Easy to Install: Quick installation even for beginners. Simply embed the window into the window opening, then secure the part of the window frame with screws, and finally fill the gaps with foam adhesive.