@charlesglassofficial: 🔥 Dumbbell rear delt flys are one of the best exercises for building rear delt detail, improving posture, and creating complete 3D shoulder development 💪 Strong rear delts also help support shoulder stability and balanced upper body strength. Focus on controlled reps, keeping tension on the rear delts, and avoiding momentum so the muscles do the work instead of the traps taking over. Small adjustments in form can make a huge difference in rear delt activation 🔥 👇 What’s YOUR favorite rear delt exercise right now? Comment below! 🏆 Train like Charles Glass and visit www.godfatherofbodybuilding.com for training products, equipment, accessories, and more 🔥