Highlights: Brand New & High Quality Fan Vent Filter Finger Guard Grill Ultra fine Aluminum Mesh filter provides great dust reduction properties Compatible with: Most of Standard 80mm Fan / Vent (Mount Hole Distance: 71.5 x 71.5mm) Idea for your desktop PC prevent dust, prevent the cable being cut by the fan, protect finger safety...etc Package Includes: 4x Fan Filter Grill + 16x Screws (fan in the picture is not included) 80mm Fan Vent Filter Grill Compatible with: Standard 80mm Fan /Vent Condition: Brand New Material: Aluminum with 0.6 mm Thickness (2) Mesh: 24#/ 25.4 mm Stainelss Steel Mount Hole Distance: 71.5 x 71.5 mm Screws are computer fan special screw (M5*8) Item Dimensions: 3.3 ''x 0.14 ''x 3.3 ''( 83.8 x 3.5 x 83.8 mm) Shipping Weight: 2.43 oz / 68.8 g Quality warranty: 6 months Package Includes: 4x Fan Filter Grill 16x Screws Instructions are not included, and item was easy to install.