TWO-IN-ONE DESIGN: Can be used as either dumbbell or barbell - easy to cater it to your fitness goals wheneverA91-155 8 weights include 4 x 1.25kg and 4 x 2.5kg plates.A91-156 12 weights include 4 x 1.25kg and 8 x 2.5kg platesA91-155: Total weight 20kg, including 4 x 1.25kg plates, 4 x 2.5kg plates, 2 x 1.4kg short poles, 4 x 0.2kg lock, 1 x1.4kg connecting pole. A91-156: Total weight 30kg, including 4 x 1.25kg plates, 8 x 2.5kg plates, 2 x 1.4kg short poles, 4 x 0.2kg lock, 1 x1.4kg connecting polePHYSICAL FITNESS: Ideal for physical exercise, helps condition and shape arms, shoulders, back, and strengthen musclesDIMENSIONS: 1.25kg plates ?17.5 x 3T cm, 2.5kg plates ?21.5 x 3.8T cm, short pole: A91-155 ?2.5cm x 40L cm, A91-156 ?2.5cm x 45L cm, 1 x ?2.5cm x 40L cm connecting pole, Inner hole of bell plate ?2.5cm