【Material】：The impact extension socket set is made of Heavy duty Chrome Vanadium steel alloydurable and hard to usea corrosion resistant black phosphate finish.

andnbsp;【Your need】：This high quality set can meet all your needs for tools.

andnbsp;【Clearly Size】：High contrast size marking is permanently laser etched and easy to read even in low light.

andnbsp;【Easy to carry】：Our Socket Set come with a heavy duty blow molded storage case easy to carry transportation and safe storage.