How do you make the horseshoe shape in your arm?

[BGHSfootball]

I've worked my triceps for a while now, but i cant seem to get that ripped looking arm with the horseshoe shape. If anyone knows the best workout please let me know.
Thanks

[live4this13]

Wrong section, but since Iam calling you out Ill answer.

To get that shape you need to focus on liftrs that add mass (skullcrushers and close grip bench) then you need to cut down fat, a common fat storage is back of arm, that may be preventing you from having it, genetics may also play a role in some people.