MaterialMade of high quality hard alloy for long time use. Set includesE4, E5, E6, E7, E8, E10, E11, E12, E14, E16, E18, E20, E22, E24. Compatible mounting range1/4, 3/8, 1/2. Multi-functionIdeal for removing sockets, nuts, bolts, screws, etc. Blow Molded CaseComes with a sturdy storage case for easy transport and quick organization. 14-piece female star socket set with case Forged and heat treated advanced chrome vanadium steel for durability and ease of maintenance with a corrosion resistant black phosphate finish. The standard size is printed on the surface for easy identification. HIGH QUALITY AND DURABLE Star socket is made of heavy-duty chrome vanadium steel and is phosphate to improve the adhesion and corrosion resistance of the coating. Standard size is printed on the surface for easy identification. HIGH QUALITY AND DURABLE Star socket is made of heavy-duty chrome vanadium steel and is phosphate to improve the adhesion and corrosion resistance of the coating. Standard size is printed on the surface for easy identification. Widely Used In Various Scenarios The socket set can meet your working and repairing needs, it is a must-have tool for your car, lawn equipment, household appliances, motorcycles, bicycles, machinery, etc. Widely Used In Various Scenarios