[electronic pen]: comes with an electric pen, which is convenient for electricians to perform circuit testing and improve work efficiency [impact resistant storage box]: the set comes with a thickened anti slip and drop resistant storage box that protects users from potential hazards while improving the durability of each screwdriver [portability]: home repair screwdriver bit is lightweight, easy to carry and store, and comes with a storage box, suitable for use in various work environments [material]: the 13pcs insulated screwdriver set is made from carbon steel, featuring hardened tips and surface treatment for enhanced durability and longevity [professional use]: this screwdriver set is suitable for both professional work and home diy projects.its insulated material ensures users safe during use, Weight: 1.8518830008 pounds, Manufacturer: N\A