Look at the degree of your triceps. Practice big chunks, and naturally look wide. While practicing 1.5CM to 2CM? Can be achieved, adding up to 4CM on both sides? The effect is much wider, but fortunately, I recommend several dumbbell movements to you, most of which are very effective. Do at least 5 groups of each movement every day, and each group must be exhausted. This will have a good effect.