36 Inch X 100 Ft Tiny Mesh 20 X 20

No-See-Um Screen, sometimes called 20×20 mesh screen is a finer mesh fiberglass to protect against no-see-um, gnats, sand flies, and other tiny insects common in low marshy and coastal areas. Stronger Screen Suitable for Patio, Porch and Pool Enclosures
Charcoal color. Mesh: 20 x 20, Diameter: .013.