CAP Barbell, 40lb Rubber Hex Dumbbell, Single - Walmart.com
THE COMPLETE SET! (40, 60, 80 lb Dumbbells and 40 lb Kettlebell) – Rock Weights
Amazon.com : Sunny Health & Fitness Exercise Vinyl 40 Lb Dumbbell Set Hand Weights for Strength Training, Weight Loss, Workout Bench, Gym Equipment, and Home Workouts : Sports & Outdoors
Best Buy: Tru Grit 40-lb Hex Elite Dumbbell Single Black/Silver BETP1040
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Amazon.com: Fuxion Dumbbells 25 Lbs Rubber Encased Hex Pair | Hand Weights | All-Purpose, Home, Gym, Office, Exercise, Work (50 Total), Set of 2 Each 25 pounds / 11.3 Kg : Everything Else