The flat surface of the metal mesh is 24 in. x 100 feet. The mesh size is 1/4 in. x 1/4 in. square opening: Made of 21-Gauge annealed wire. The ideal mesh size 1/4 in. keeps small animals out and protects your poultry safety without affecting the sight and sunlight entering the chicken coop/cage; effectively prevents harm from snakes, gophers, skunks, chipmunks, voles, raccoons and other biological pests. The wire mesh rolls select high-quality metal wire, which is firmly welded and evenly coated with vinyl; the mesh surface is smooth and each hole is the same size; it has a beautiful appearance and has certain decorative functions; the structure is sturdy and corrosion-resistant; it is easy to install and not easy to fade or deform.