■ Size: Approximately 12.2cm in diameter ■ Weight: 7.26KG ■ Material: Cast iron *This is for practice with the shot put used in track and field. *The KG notation is a nominal value, so there may be slight errors. *Dimensions are measured by staff manually, so there may be slight errors. *Product images are for illustrative purposes only. *Colors, shapes, and designs are subject to change without notice due to production reasons. The above is transcribed from the purchase site. I bought this on Rakuten Ichiba on April 7, 2025, but it was heavier than I expected, so I bought another size and am listing this one. This is a used item, so please understand before purchasing.