Weider SpeedWeight 100 (15-50 lbs.) Adjustable Dumbbell Set with Stand (2) 50 lb. Adjustable Dumbbells (6) 20-Minute Workouts on 3 DVDs (Endurance, Strength, Strength & Power) Weights Adjust from 15 to 50 lbs. Fast and Easy Adjustment Adjustable in 5 lb. Increments