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Cast iron weight plates the Tunturi weight plates are made of 100% cast iron. The weight plates have an inside diameter of 30mm. Because of this dimension the Tunturi weight plates fit on all 30mm dumbbell bars. The plates have a rubber coating around the cat iron, which makes them easy to hold and they won't damage the floor. The plates are available in the following weights: 0.5 kg 1.25 kg 2.5 kg 5.0 kg 10.0 kg 15.0 kg 20.0 kg most important features: 30 mm diameter available in various weights

TUNTURI Unisex's Rubber 15.0kg Single Plate Black 15 kg - BCDMMD6SQ