Quality cast iron weight plate with double baked enamel coating that provides protection and protection against rust and burs. With a bar hole diameter of 1 inch, or 2.54cm, you will be able to make use of these plates with most other bars you may already have. 2.5kg weight plate ideal for light lifting exercises Durable double baked enamel cast iron plates 1 inch hole at the centre of the plate can accommodate most bars Suitable for a range of activities