The ROCKBROS 340001002 is a compact bicycle bell designed to alert pedestrians and other cyclists through a multitonal sound with an intensity of 80 dB. Its silver finish is achieved using a combination of steel and plastic, resulting in a lightweight accessory that weighs only 50g and measures 6.9 cm in height by 3 cm in width. Installation is straightforward and requires no tools, as it uses an elastic strap with a fixing wheel to secure the 30 mm diameter bell to your handlebars. This mounting system is versatile enough to fit a wide range of handlebar diameters from 22mm to 34mm, making it a practical choice for various bike types.