Key Advantages: Solid construction - stainless steel covered with rubber. Perfect casting - weight within +/- 0.5% of the stated weight. Good finish - prevents rotation on the bar. Thick rubber - absorbs impacts in the event of falls to the floor. Specifications: Material: NR, SBR; Outer diameter: 450 mm; Inner hole diameter: 51 mm; 2 pcs; More information: The plates are made of the highest quality materials. Covered with a special, thick rubber that absorbs every impact, preventing damage to the floor in the event of a fall. CBR HMS plates achieve, depending on their weight, between 75 and 96 points on the Shore A scale. This means that these plates are much more durable than cheaper, rubber-coated plates available on the market. Each plate is calibrated by weight and dimensions. This means that the disc's weight must be within +0.5% and -0.5%. The color-coding of the plates assigned to each weight complies with the technical requirements of the International Weightlifting Federation (IWF). The inner diameter is adapted to Olympic bars. Precise workmanship ensures stability during intense training. The stainless steel sleeve in the plate facilitates loading and unloading the weight from the barbell. This additional element ensures the weight remains securely attached to the bar.