Features: Alloy material, strong durability, and not easily deformed; L-shaped for easy operation in narrow space; Comes with a power lever to increase torques. 9piece flat head standard model, suitable for various screw sizes; The surfaces has been specially treated for rust prevention and durability; Precise manufacturing, accurate dimension, and smooth use. Suitable for maintenance workers, mechanics, DIY enthusiasts, and others who need to disassemble and install screws. It can be widely used in fields such as home repair, car maintenance, electronic equipment maintenance, etc., especially suitable for tightening screws in narrow space. Specifications: Material: S Alloy Steel Size：approx 1.5/2/2.5/3/4/5/6/8/10mm Quantity： 1Set Types：Flat Head Standard Version/Flat Head Extended Version/Ball Head Standard Version/Ball Head Extended Version/Ball head Longer Extended Type/ Ball Head Extended Version Box Version/ 9PCS Ball head Longer Extended Type Box Package Includes: 1 Set Allen Key note: Due to the problems of lighting effects and shootingangles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.