2 Sets in total, 4 blinds are sent to the glass installed internally and externally.

Set content is set for 2 glasses.

Consists of 2 Hard Plastic Louvers and 1 Nut Bolt It is a stylish Louver system that surrounds your glass internally and externally It has special panels that do not take cold, flying pests to the interior It provides a healthy ventilation environment to evacuate the unpleasant odors in the inner joints while preventing the hazards caused by natural gas compression in the interior Natural gas Ventilation Glass Vent Cover is made of ultrasonic special plastic It does not discolor and does not deform Outside Size Ø18Cam Hole Size Ø16cm