This is a 4GA Ground Terminal for your USDM Honda / Acura chassis to the battery.
These can be used to convert your Japanese Vehicle to American Battery Lugs
*US Battery Lug for American Hondas/Acura vehicles and batteries*
available with and without Raychem sleeving and in various lengths in the case you relocated your battery.
Measure what yours uses from center of Terminal to center of ring terminal. A string cut to length can be used
EG DC EK is generally 9-10in M6 to the 10mm OE Ground on the shock tower
EF DA is generally 16in M8 for the 12mm OE Ground under the battery
all other applications you measure what you need.