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BTBR20 OLYMPIC BUMPER PLATE 20 KG HMS The disc has steel inner hubs, which makes it narrower and allows more kilograms to be placed on the bar. This is not the only advantage of the steel centre. The BTBR disc can be calibrated, which allows it to be adjusted to the gram. To do this, unscrew the centre of the disc and add or remove material as desired. BTBR BUMPER LOAD 20 KG is all about quality and precision. The weight plate is made of a single piece of rubber, which directly translates into load resistance. In addition, the rubber absorbs the impact on the ground well. The diameter of the inner hole is adjusted so that the weight smoothly goes onto the handle and at the same time does not swing on the shaft. BTBR discs, in terms of material and functionality, are in the class of certified competition discs, and are therefore a great choice and will certainly accompany successful training for years. Specification: Material: 37,5% steel, 62,5% rubber Inner diameter of the hole: 51 mm Outer diameter: 450 mm Thickness: 55 mm Weight: 20 kg Remarks: 24 months warranty Importer: Abisal Ltd. | Poland | 41-807 Zabrze | Pyskowicka Street 17 | e-mail: abisal@abisal.pl Abisal Ltd.. declares that the products sold by the company are safe and meet the requirements contained in the Act on General Product Safety of December 12, 2003. (Journal of Laws of December 31, 2003)