All Gym Accessories Available like Dumbbell, Cast Iron Casting , Gym Mat An Olympic weight plate is a robust, precision-engineered weight used in strength training and weightlifting. It features a standard diameter of 17.7 inches (45 cm) and a central hole of 2 inches (50 mm) to fit Olympic barbells. Crafted from durable cast iron or steel, these plates come in various weights, typically ranging from 2.5 to 45 pounds (or 1.25 to 20 kg), and often have a protective coating to resist corrosion and wear. Designed for high-performance lifting, Olympic weight plates ensure a secure fit on the barbell and are essential for effective strength training and powerlifting exercises.