Olympic weight plates are specialized weights used in strength training and competitive lifting. They are designed to fit on Olympic barbells, which have a 2-inch diameter sleeve. These plates come in various weights, typically ranging from 1.25 kg to 25 kg, and are often color-coded for easy identification. Made from durable materials like rubber or cast iron, Olympic weight plates are built to withstand heavy use. They are commonly used in powerlifting, weightlifting, and cross-training workouts, providing athletes with the ability to increase resistance and improve their strength and performance.