Robust Frame: The frame is made of heavy duty aluminum alloy and has been anodized to polish the surface to a smooth finish, which will not corrode even in harsh offshore links or outdoor environments. Window Construction: The skylight is made of 6 mm thick smoked gray acrylic glass, with rotating fixed handle and 316 stainless steel support rod, to ensure the overall sturdiness and durability of the sunroof. Strong Seal: The window frame has a waterproof seal that provides complete sealing and shock absorption, and the gray glass filters out UV rays while ensuring light can enter the compartment for brightness. Multifunctional Use: Adopts push out sunroof design, the rotary handle of the escape window has a switch lock button, which can be opened from 0 to 90 degrees, used for sunroof, ventilation window, storage compartment, roof, etc. Wide Application: The deck porthole 260 x 260mm cut out installation, suitable for 15mm or any thickness of the wall, suitable for boat, yacht, ship, and RV, can be used for modification and other projects.