Features:* Made of high quality material, durable and practical to use* 3pcs 50mm Electric Driver Bit Set Hand Tools Screwdriver Drill Bit S1 S3 1/4 Inch Hex Shank Square Magnetic Head* These bits are magnetic which can be fixed firmly on screwdrivers, fixing electric screwdrivers, hand screwdrivers, electric drills, air drills and so on. Specifications:* Material: alloy steel* Color: silver* Dimensions: S1 length: 50mm/ 2 head inch size: 2.3*2.3(mm) Length: 50mm/ 2 head inch size: 2.8*2.8(mm) S3 length : 50mm/ 2 inch head size: 3.4*3.4(mm)* Quantity: 3pcs Package content: 3 * Screwdriver Bit Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data