This is a bulk lot of 270 various brand/unbranded sockets in various sizes, units of measurements, colors and conditions. The weight of the lot is 21 lbs. 4 mm – 4. 4.5 mm – 3. 5 mm – 5. 5.5 mm – 5. 6 mm – 8. 6.5 mm – 3. 7 mm – 7. 7.5 mm – 1. 8 mm – 10. 9 mm – 8. 10 mm – 10. 11 mm – 10. 12 mm – 15. 13 mm – 8. 14 mm – 5. 15 mm – 5. 16 mm – 2. 17 mm – 7. 19 mm – 1. 22 mm – 1. Includes clip-on socket organizer rail. Please message me with questions.