17 Different Sizes: This electric screwdriver bit has different sizes among them, which can meet your different needs of use, very practical. 2Excellent Alloy Steel Material: This electric screwdriver bit is made of excellent alloy steel material, which is sturdy and wear resistant, not easy to be damaged, and has a long service life. 3Magnetizer: This electric screwdriver head set comes with a magnetizer, which can be used to add magnetism after multiple uses. 4Wide Application: This electric screwdriver bit has a wide range of applications for cars, repairs, trucks, engines, motorcycles, computers, cable boxes, toys, upholstery, dashboards, appliances and consumer electronics. 5Compact And Portable: This electric screwdriver bit is small in size and light in weight, which is very convenient to carry and use on the go. 7 x Cross Screwdriver Bits 1 x Magnetizer