25 Minute Workout - Back, Shoulders, Quads, Tris, Bis - Tonic, Phasic - At Home, In OfficeFeb 24, 2025ShareNEEDED TOOLSPulley system or 2 light dumbbells (2 lbs. to 5 lbs.)Roller board (something equivalent like a skateboard)WORKOUT WITHOUT MUSICWORKOUT WITH MUSIC