With its stable materials and multi-functional design, the Socket Adapter is perfect for various work needs. Whether you need to tighten or loosen bolts of different sizes, this tool can easily adapt to different socket sizes, saving you . Its compact adapter ensures a secure connection, preventing any loosening during use. Features -Color:Black -Material:Chromium vanadium alloy steel -Size:4.00X2.00X2.00cm/1.57X0.79X0.79in -Note: 1/2" to 3/8" (12.7mm square hole to 9.53mm square head) 3/8" to 1/4" (9.53mm square hole to 6.35mm square head) 3/8" to 1/2" (9.53mm square hole to 12.7mm square head) 1/4" to 3/8" (6.35mm square hole to 9.53mm square head) -The socket adapter is made of stable material, durable and not easy to break. -It is a versatile tool that can be used with different socket sizes, suitable for a variety of work needs. -The tool allows for efficient and time-saving switching between sizes. -It provides secure connection during use, compact design and firmly connected to ensure that the tool will not loose during use. -The stylish design adds to its appeal, simple, adding a professional sense of work. Package list: 4 x Impact Sockets