72D6Z Point Size: 6mm, Line Width: 0.13mm Features: -Pen poin. -Stainless steel for use on paper vellum or tracing paper. -Refillable and most are sold individually or in sets. -Replacement nibs for Rapidograph®. -Technical pens. -Sketching style. Pen Type: -Ballpoint. Retractable: -Yes. Ink Color: -Black. Pack Size: -Individual. Point: -Fine. Item: -Pens. Country of Manufacture: -United States. Dimensions: Overall Length: -1.75". Point Size 1mm - Pen Size (mm): -1 Millimeters. Point Size 2mm - Pen Size (mm): -2 Millimeters. Point Size 2.5mm - Pen Size (mm): -2.5 Millimeters. Point Size 3.5mm - Pen Size (mm): -3.5 Millimeters.