1、3mm Thickness: Our wrench set have been increased in common sizes to better meet more needs. The wrenches are 3mm thick, allowing you to use them effectively in tight area. 2、Non Slip: The wrenches are crafted with accuracy to fit all fasteners perfectly, so they will not slip during use and very practical. 3、Matching Types: Two sizes per wrench for almost all types of maintenance and mechanical work. Large hard stamped dimensional markings for wrenches. 4、High Carbon Steel Material: Our wrench set are made of high carbon steel, heat treated for high hardness. Mirror polished to prevent rusting and long life. 5、Easy to Store: The wrench set comes with a storage bag for easy storage and portability. They are neatly rolled up in a storage bag for storing in your car trunk or in mechanical gear. 6、Usage Scenarios: Our wrench sets are widely applied in bike, motorcycle, auto repair, home, machinery, electrical and other industries.