Specifications: Made of high quality steel material which is durable and tough, a commonly used material in hardware. This set includes 3 types screwdriver bits of slot, PH1, PH2 in different sizes which will meet you basic need. Screwdriver bits has magnetism and would attract screws and hold screws firmly. With 1/4inch hex shank, they are widely used on electric screwdrivers, hand screwdrivers, electric drills, etc. They are great bits for you to have in your tool box and will not worry about not having the proper screwdriver any more. Item Name: Screwdrivers Bits Material: CRV Cross Screwdrivers: PH0/PH1/PH2/PH3 Slotted Screwdrivers: SL3/SL4/SL5/SL6 Features: Multifunction, Hex Shank, Anti-slip, Repair Tool Bag: Length: 14.3cm/5.63" (Approx.) Width: 12.3cm/4.84" (Approx.) Height: 3.3cm/1.3" (Approx.) Notes: About 100pcs seeds, quantity will be 1 - 5pcs more or less. Hope you can understand, thank you. Due to the light and screen setting difference, the items color may be slightly different from the pictures. Package Includes: 4 x Cross Screwdrivers Bits 4 x Slotted Screwdrivers Bits 1 x Multi-function Handle 1 x Storage Bag