Description: Material: Polished stainless steel fast, durable and weather resistant, not easy to corrosion or rust, rubber ball use soft and scratch resistant. Horn size: 18 cm (7.0 in) long; Horn ball diameter - 5.5 cm (2.2 in); Metal Nozzle - 7.5 cm (2.9 in). Mounting size: Handlebar diameter - 2.2 cm (0.87 in). Easy installation: Simply tighten the screws with an Allen wrench/screwdriver (not included) to easily install and remove from the bicycle handlebars. Safe and loud: Let everyone know you're coming by squeezing the rubber ball on the horn and making a distinctive honk. This classic retro bicycle bell is suitable for any vehicle such as golf cart, boat, RV, bicycle, motorcycle, etc. Customize your bike the way you want to make your bike more attractive. Specifications: Product Name: Bicycle horn Material: Metal, rubber Size: Buckle inner diameter :2.2CM horn opening 7.5cm total length about 18CM Package Included:1x Bicycle horn Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 0.1-2cm measuring deviation due to manual measurement. The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.