[Package Includes]:Contains 12 Point Flower Shape M4 M5 M6 1/4 (6.35mm) length:37mm,M8 M9 M10 12 3/8 (10mm) length:48mm,12 Point Corner Center Hole:M14 3/8 inch (10mm) length:48mm, 18 1/2 inch (12.5mm) length:55mm [Premium and Reliable]:Bit Socket Set is made of Chrome vanadium steel material,which is sturdy,wear resistant,and not easy to break for long time use [Portable]:This box measures 21cmx11cmx3.5cm/8.27inch x 4.33inch x 1.38inch,making it compact easy to store,and easy to carry [Practice]:Bit ends are inserted into fasteners and protect both bits and fasteners from damaged [Versatile Use]:These Bit Socket tools are for tightening and untightening screws and bolts,professional mechanics,and DIY enthusiasts, Weight: 1.4660740423 Pounds, Manufacturer: CYDZSRA