My tri's so so weak, def hurting my benches recommend any exercise to build mass

[Howlin Mad Missy]

The best Tricept excercise is skull crushers. 90% of all people who are trying heavy bench press's have a chest strong enough to lift the weight. Hence why they don't get crushed with it, but rather unable to push the last few inchs. Skull Crushers, tricept pushdowns, and dips. You HAVE to have strong tricepts to bench big weights.. period

I like them but I never feel my technique is correct no matter how I alter the angle of my arms to really burn the muscle.