12 x Silver Tone Stainless Steel Perforated Mesh Air Vents Louver 25mm Product Name : Air Vent;Design : Mesh Hole, Round Shape Color : Silver Tone;Material : Stainless Steel Each Hole Diameter : 3mm / 0.12";Total Size : 35 x 10mm/ 1.4' x 0.4"(D*H) Mount Hole : 25mm/ 1";Net Weight : 48g Package : 12 x Air Vents