Application range: 7 - 19 mm, 11 - 32 mm. fits all triangles, squares, hexagons, wing nuts, metal clamp bolts and rings, and all other polygonal nuts Physical Fit: Unique design automatically adjusts to any size or shape. Suitable for removing various shaped nuts, wing nuts, broken nuts, loose nuts, square nuts, hex, screws, hooks, lag bolts and bolt heads. Sophisticated design : Honeycomb design principle, the most robust overall. You can save time by choosing the size of the bolt / nut according to the space. Beautiful and exquisite, socket wrench fine surface polishing, beautiful, no rust Quality materials: UniversalHigh-strength chrome-vanadium steel, high security, long service life and not easy to damage Wide range Applications: The compact socket wrench lets you get the job done quickly and easily, for connectors of all sizes. Our products are suitable for the automotive industry, manufacturing, construction, etc., and are ideal to include in your toolbox