As another option, for tricep mass, might consider Dips. Having the elbows torching the sides (as much as possible) , and the body kept at an 180 degree angle throughout the exercise, is putting a greater direct focus on the triceps. Have someone hold the body in that 180 degrees, or brace the feet against any object, to stay in that inline position. Even leaning a bit forward will throw the affect more to the anterior delts & pecs. Flaring out the elbows also transfers the work to the pecs more.
A "V" dipping bar is an excellent piece of equipment, not only for the triceps but the pec/delts tie in. Preforming dipping exercises from extra wide to narrow.
Check out the triceps of most gymnast and the many forms of dips they do in training. While your at it, check the biceps from all the ring and bar work they get. And these guy's train 5, or more, days a week. Good Luck.