O次郎 3 Fast shipping. Just received these 2x 24kg kettlebells today, so pending a more long term review. The quality looks pretty good. Steel cast; no lead fillers. Good texture on the handle with a light epoxy coating. Good size window.Note: I have been using kettlebells for over 15 years. I have several iron kettlebells (20kg, 24kg) and steel competition bells (28kg, 48kg).