Retractable sliding RV window with high-quality aluminum alloy and ABS frame and tempered glass (DOT E13-43R). Black electrostatic powder coating provides corrosion and wear resistance. Adjustable 90° opening angle for customizable ventilation. Includes sun and insect protection for privacy and safety. Easy installation with decorative rings and screws. Smooth acrylic surfaces ensure simple cleaning and maintenance. Ideal for motorhomes, caravans, and boats.