Description: This ergonomic dumbbell set has a total weight of 30 kg (2 x 15 kg). The dumbbells have non-slip, plastic-coated bars, so you don't have to worry about them slipping and falling. The bars are approximately 14.5 cm long. You'll also no longer be bothered by annoying clanging noises from the weight plates. Its total weight is approximately 20 kg. Thoughtful design: The weight is clearly embossed on each weight plate for quick and easy identification. Properties: 2 x 0.5 kg dumbbell bars: 25 mm x 45 cm (diameter x length) 4 x 1 kg weight plates: 15.5 cm x 2.8 cm (diameter x thickness) 4 x 1.25 kg weight plates: 17.5 cm x 3 cm (diameter x thickness) 8 x 2.5 kg weight plates: 21 cm x 4 cm (diameter x thickness) Number of star collars: 4 (diameter 25 mm) Color: Black Material: Cement with plastic coating + steel bars Diameter of large weight plates: 21.5 cm Diameter of small plates: Weight plate: 19 cm Thickness of large weight plates: 4.5 cm Thickness of small weight plates: 3.5 cm Hole diameter: 26 mm Barbell size: 2.5 x 45.5 cm (diameter x length) Total weight: 20 kg Barbell weight (with star collar): 0.55 kg Weight plate weight: 4 x 2.5 kg + 4 x 2 kg