Features: Light weight design, fine workmanship, beautiful lines, simple operate. Make of High strength Steel and Nylon, corrosions resistant, wear resistant, and none deformation. Alloy steel bit, high hardness, large twist, good toughness. This twist wrench is portable and easy to use, making it convenient for bicycles repairs. The inner hexagon set design allows for easy and efficient tightening and loosening of bolts and nut. Specifications: Component: Steel + Nylon (Bit Alloy Steel) Type: 10/20 size: 10: length 5cm/1.97inch, width 3.5cm/1.38inch, height 18.5cm/7.28inch, volumes 323.75cm³, weight 119g 20: length 5cm/1.97inch, width 3.5cm/1.38inch, height 21cm/8.27inch, volumes 367.5cm³, weight 139g 10: twist ranges 3-10N·m Hexagonal bit: 3/4/H5/H6/8, blossom T25 20: twist ranges 10-20N·m Hexagonal bit: 3/4/H5/H6/8, blossom T25 Package Includes: 1pc Wrench note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.