QUALITY MATERIALS - This set is comprised of Chrome Vanadium Steel (50BV30) for durability and resilience, ensuring these tools stand the test of time and frequent use. Practical Storage - Comes with a box for easy transport and quick organization, all outlets are size marked to quick identification and prevent any tools from being misplaced. VERSATILE VERSATILE - Available in 1/4in, 3/8in and 1/2in drive sockets, this kit offers a variety of applications and fits sizes of bolts and screws.<br><br>Torx-shaped bolts size: 1/4in Drive - E4. E5. E6. E7. E8(4, 5, 6, 7, 8 mm) 3/8in Drive - E10. E11. E12. E14. E16 (10, 11, 12, 14, 16 mm) 1/2in Drive - E18. E20. E22. E24 (18, 20, 22, 24mm) Material: Chrome vanadium steel colour: silver+red<br><br>Package Contents: 5 x 1/4in sleeve(E4, E5, E6, E7, E8) 5 x 3/8in sleeve(E10, E11, E12, E14, E16) 4 x 1/2in sleeve(E18, E20, E22, E24)<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.