Material: and weather-resistant, not easy to corrode or rust, the rubber ball is soft to use and scratch-resistant. SAFE AND LOUD: Squeeze the rubber ball on the horn and make a unique horn sound to let everyone know you're . This classic retro bicycle bell is suitable for any vehicle such as golf carts, boats, RVs, bicycles, motorcycles and more. [Loud Voice] The sound is loud and crisp,the winding type is stylish. When there are pedestrians in front of the road, you only need to pinch the rubber ball of the bicycle horn, the horn will issue a loud and pleasant horn to remind pedestrians of safety, to protect everyone's safety. [Easy to Use] The horn back is a ball-shaped elastic rubber ,which is exhaled when pinched and automatically recovered by inhalation when let go. When the hand is pinched, the air is released. Colour:As Shown Material:Metal+Rubber Package Contents: 3 * Bicycle Horn Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.