Window or porthole CloZure (porthole blind) - for use when curtains and shades don't work.

Product details:

• The shutters offer 100% UV protection and will make your boat's interior 15 deg. cooler on a hot sunny day.
• Sunlight will filter through the shutters, so the interior remains bright
  
• When closed at night, the shutters provide 100% privacy.
  
• Available in 3 colors - White, Sea Shell, Black on White
  
• The room darkening shutter is black on the inside and white on the outside.
  

CloZures® shutters are made from 2 pieces of 0.030 thick Polycarbonate which have been silkscreened and processed to size on automated equipment. They function by simply moving one layer on top of the second layer, thus opening or closing the shutter.

They are manufactured using the latest UV material and technology.
CloZures® are attached to the lens/glass of the portlight or hatch via 3M low profile Dual Lock (a Velcro-type material). To install, simply remove the red liner exposing the acrylic adhesive, then position and press firmly to the lens/glass. They are easily removed for cleaning.

Sometimes referred to as: shade for the window or shade for a door, shade for door window, Portlights closures, Portlights closure, portlight shade, portlight, portlight covers, pleated shades, pleated shade, hatch shades, door window shades, door window shade, DIY boat shade, clozures shutter, boat window blinds