268mm long size:9-13mm,14-22mm 45# carbon steel,black Electrophoresis .Two specification ranges for double end wrench, the smaller end is suitable for nuts and bolts from 9mm to 13mm, and the larger end is suitable for nuts and bolts from 14-22mm. This special design greatly improves the application area of the wrench and can meet your different needs. .Ideal for various types of fasteners, including 6-point, 8-point, 12-point, square, triangle and others with angled fasteners, suitable for home decoration, construction, carpentry, automotive, bicycle, motorcycle repair and home maintenance. Note: Not suitable for rounded nuts. Unique ultra-long design can increase torque, better use of the lever principle, more labor-saving; human body engineering design, more convenient to use.