Product name: 8-in-1 screwdriver Size: 12.5cm long after folding, 21cm long after unfolding, 5cm thick (diameter) Steel: after heat treatment and quenching process! Make the material harder! Hardness: 60HRC Power supply: 2 No. 7 batteries (not included) Specifications: 1. [CrV alloy head design]: It has high strength, great toughness and low hardenability, and is commonly used for high-quality materials with high surface hardness and wear resistance 2. [Humanized lock catch design]: The lock catch design is adopted, making it easier to switch the screwdriver 3. [Self contained lighting lamp]: The product has 6 lamp beads at one end, which can be lit by only three No. 7 batteries, and there is no longer any fear of being invisible at night 4. [8 screwdriver specifications]: It has 8 different screwdriver specifications at the same time, allowing you to switch at will 5. [Easy to carry]: easy to store and carry Package Included: 2*8-in-1 screwdriver