This is the Oi/Oi bicycle bell by knog./knog. It's brass-colored and size L. It's compatible with handlebars with a diameter of 23.8mm and 31.8mm, such as drop handlebars. Made from aluminum material processed with a CNC machine. Through repeated trials of thickness, width, material, and curves, they pursued a bell that would revolutionize the shape of conventional bells. Not only is it well-designed, but it also excels in practicality as a bell, and is engineered to deliver the best sound quality and volume. It's new and unused, so I believe it's in beautiful condition. I'm very sorry, but I will not be offering a discount. Thank you for your understanding. ・Retail price: 2,970 yen ・Compatible handlebar diameter: 23.8mm, 31.8mm ・Size: H: 16mm x W: 37mm x L: 53mm ・Weight: 26g