I've being doing dumbbell chest press at 30 pounds each for about a month, but there hasn't been any change in my size. Why is my chest not growing? - Quora
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CAP Barbell Set of 2 Hex Rubber Dumbbell with Metal Handles, Pair of 2 Heavy Dumbbells Choose Weight (5lb, 8lb, 10lb, 15lb, 20 Lb, 25lb, 30lb, 35lb, 40lb, 50lb) (10lb x 2) | FitnessGearUSA.Com
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Best Buy: Tru Grit 30-lb Hex Rubber Coated Dumbbell Single Black/Silver BELL1030