Features Heavy duty chrome vanadium steel: Ensures durability and long service life, providing reliable and robust socket adapters for versatile use. Electroplated and blackened finish: Offers impairment resistance, ensuring longevity and maintaining the pristine look of the socket adapters. Secure socket retention design: Features a ball detent and small hole to keep sockets firmly in place, providing stability and security during use. Versatile set of four different-sized adapters: Allows for compatibility with various sockets, ensuring flexibility and convenience for different applications. Compact and easy to store: The small size makes these adapters convenient for storage, a addition to any toolbox for easy access and organization. Features: 1、Socket adapters are made from heavy duty chrome vanadium steel for durability and long service life 2、The of each adapter is finished by electroplating and blackening, which ensures impairment resistance 3、Adapter body is designed with a ball detent and a small hole to keep your sockets still and secure 4、There are total four socket adapters of different sizes in this set and you can use for various sockets 5、These adapters are of small size and easy to storage; if you get a toolbox, this set should be in it Specification: Description: This is a 4 pcs socket adapter and reducer set. Heavy duty chrome vanadium steel construction is designed for use with drivers and wrenches. A black oxide finish makes each piece impairment resistant and very . Spring loaded ball detent keeps your sockets still and secure. There are a range of sizes to accommodate many socket or wrench combination including 1/2"(M)--3/8"(F), 3/8"(M)--1/4"(F), 3/8"(M)--1/2"(F) and 1/4"(M)--3/8"(F). Features: Socket adapters are made from heavy duty chrome vanadium steel for durability and long service life. The of each adapter is finished by electroplating and blackening, which ensures impairment resistance. Adapter body is designed with a ball detent and a small hole to keep your sockets still and secure. There are total four socket adapters of different sizes in this set and you can use for various sockets. These adapters are of small size and easy to storage; if you get a toolbox, this set should be in it. Specification: Material: chrome vanadium steel Finishing: Electroplating, blackening Hardness: 45±2(HRC) Color: black Size: 1/2"(Male)--3/8"(Female) 3/8"(Male)--1/4"(Female) 3/8"(Male)--1/2"(Female) 1/4"(Male)--3/8"(Female) Package Includes: 4 x Socket Adapters Not Package List