Silver Ship Original Select Brass Product This is a medium size wall mounted round window with a marine round window. Easy to install on walls such as doors with wood screws. The round window can be opened and closed depending on the installation direction, you can choose the open and close direction, either up or down, left or right. Available in three finishes, polished brass, antique and chrome plated finishes. Use it as a small item for your marine interior. Made in Taiwan brass factory with a carefully selected canalship and a firm quality control. Installation method: Wood surface: Please install with included screws.