How much does this cost to the nearest dollar?

DEVONER 4 Inches Dryer Vent Cover Outdoor White Plastic Louvered Exterior Exhaust Vent Cover with Aluminum Alloy Grille Screen(Includes 1 Duct Hose Clamp)
DEVONER 4 inches dryer vent cover is made of sturdy plastic material for long service time; Easy to install and open easily for maximum exhaust flow, helping to keep snow, rain, wind from entering the outdoor vents. DEVONER 4 Inches Dryer Vent Cover with Aluminum Alloy Grille Screen Has Features As Follows Good & Rational Design - Use louver design with Aluminum Grille Screen; - Keep rain, snow, wind from entering outdoor dryer vents. Sturdy Plastic Construction - Add some inhibitors to it, to decrease age fading due to long time exposure to sunlight. Easy To Install -Easy installation without requiring

Price is $10.00
Price: $9.99