I designed a kit you can keep in your truck or in your test Equipment case

100 regular LC dust caps

10 LC dust caps with tails

Size 1.25

100 regular SC/ST/FC dust caps

10 SC/ST/FC dust caps with tails

Size 2.5

The tails keep you from losing dust caps on jumpers that are unplugged more often

or used on test equipment jumpers / launch reels