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The Swiss Olympic competition Bumper has a standard IWF diameter of 450 mm with minimal surface imperfections.
It has a steel reinforcement in the core, which makes it more compact and durable.
In addition, it allows adding discs in the bar thanks to its smaller thickness.
The colour of the virgin rubber allows the easy identification of weight, while the superior hardness provides a minimum rebound.
Set contains 2x10kg, 2x15kg, 2x20kg, 2x25kg.