Design and Compatibility:
Olympic weight plates are designed to fit on Olympic barbells, featuring a standard center hole diameter of 50 millimeters (approximately 2 inches).
Materials:
They are commonly made of cast iron or steel, with some variations including rubber-coated plates known as bumper plates. The plate in the image appears to have a rubber coating over a cast iron core.
Features:
The triple-handle design on this plate allows for improved grip and easier handling during exercises.
Usage:
These plates are used in conjunction with Olympic barbells for various weightlifting and strength training exercises.