The hole is in the standard dimension of approx. 30 mm, allowing you to use the weight plates on bars from different manufacturers. We currently offer weight plates in the following weight classes: 1 kg, 2 kg, 3 kg, 4 kg & 5 kg.7.5kg,10kg As further evidence of quality, the neoprene surfaces that we use have been checked for heavy metals/plasticisers by the renowned Intertek Institute.
