Them things where you put your arms behind you on a bench, sit down with legs straight and press up and down with yer arms
triceps extentions perchance. stand there with one arm vertical, put other hand behind head n support arm from goin back, lower arm to right angle n extend back up to just before locking out.
press ups are quite useless for working triceps.
please put in the rest of my sentence which was "they're good to a very soon reached point"