PVC Coated Welded Mesh: Opening Wire Diameter In inch In metric unit(mm) 1/2" x 1/2" 12.7mm x 12.7mm 16,17,18,19,20,21 3/4" x 3/4" 19mm x 19mm 16,17,18,19,20,21 1" x 1" 25.4mm x 25.4mm 15,16,17,18,19,20 Technical Note: 1. Standard roll length: 30m; width: 0.5m to 1.2m. 2. Special sizes available at request. 3. Packing: in waterproof paper in rolls. Custom packing available at request.