Provided on a Socket Storage Rail. 1/4" Drive E4, E5, E6, E7, E8. 3/8" Drive E10. E11, E12, E14. 1/2" Drive E16, E18, E20, E22, E24. Ideal for Star Shape Bolts. If you feel our S&H prices are too high, we can provide you weight the item's weight so that you can confirm the prices for yourself.