... 19.1mm×19.1mm16,17,18,19,20,211''×1/2''25.4mm×12.7mm16,17,18,19,20,2111/ ... 2''38mm×38mm14,15,16,17,18,191''×2''25.4mm×50.8mm14,15,162''×2''50.8mm×50 ... Opening Wire gauge(BWG) In inch In mm 1/2''×1/2'' 12.7mm×12.7mm16,17,18,19,20 ... 19.1mm×19.1mm16,17,18,19,20,21 1''×1 25.4mm×25.4mm 15, 16,17,18,19,20,Technical note ... :1. Standard roll length: 30m, width: 0.5m to 1.2m2. ...