Description: The screwdriver has been undergone quenching heat treatment, so the surface has sturdiness and durability performances. The screwdriver is alloy tool steel with chromium and vanadium elements added for greater strength. Made of ABS and metal material, it is durable and strong. Its length is 18.5cm, width is 11.5cm, height is 4cm. It is suitable for laptop, camera, desktop, tablet, mobile phone, small appliances, precision instruments and toys. Item Name: Screwdriver Set Material:ABS,Metal Size:18.5cmx11.5cmx4cm/7.28inx4.53inx1.57in Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. After long-term storage, hardware products will inevitably rust. They must be stored in a dry, air-permeable space to reduce the rust rate of the product. Package Includes: 1 Set of 64 in 1 Screwdriver