This is a joint , which is manufactured with premium chrome-vanadium steel material, durable and practical enough to use. Applicability of standard size, made of materials, easy to left and right, convenient to use, and wide in scope. Use with tools, the joint set allows you greater access to fasteners in hard-to-reach spaces. Features -Material: -V chrome-vanadium steel. - The printing is clear, clean, complete and high- technology, safe and firm, and the surface is plated with color. - Applicability of standard size, made of materials, easy to left and right, convenient to use, and wide in scope. - The interface is accurate and not easy to fall off. The interface is widely applicable, fine and not easy to fall off, and it has a high degree of consistency and wear resistance. - Use with tools, the joint set allows you greater access to fasteners in hard-to-reach spaces. - Our accessories are more resistant to drive end round out than standard sockets accessories, resulting in a longer useable life. Package list: 1 x Joint