Forged from industrial-grade steel with integral heat treatment for increased hardness and impact resistance. Hexagon screw connection and concave groove design help prevent detachment. Surface features fine polishing and bright chrome electroplating; knurling design enhances grip and friction. Includes plastic storage box for practical organization, keeping tools secure and easy to carry. Product Name: V Steel Sleeve Set of 6 long 1/2 inch sockets: 12, 14, 17, 19, 21, 22mm Color: Silver Material: Steel Package Contents: 6 x 1/2 inch long hexagonal sockets Note: The package includes only the items listed above. Other accessories are not included. Note: Colors may vary slightly due to lighting and monitor display differences. Measurement error allowed is +/- 1-3 cm.