| Length butt to eye | 339 mm |
| Shank diameter | 1.62 mm |
| Customary needle designations | 16X231, 71X1, DBX257, 16X257, 1738, DLX1, DBX1 U |
| Canu designation | 14:25 |
| Further point designations | U BALL, Y BALL, H BALL, HB, EX H BALL, SKF, BPH, CAL, BIL |
| Needle form description | Straight needle with single groove and scarf |
| Technical sewing application | Double lock stitch |
| Stitch type class | 300 |
| Recommended for | Elastic fabrics, Open sewing materials |
| Examples of use | Tulle |
| Coating | Chromium |
| Needle size | 0.65 Nm |
| Point style | G - Cloth point |
| Needle system | DBX1 |