Mini Bike Bells Crisp Clear Sound 100dB Hidden Bicycle Bells Invisible Cycling Alarm Alert Ring for Mountain Bike ScooterFeatures The ringing sound of the mountain bike bell can reach 100dB, the sound is loud and clear, which helps pedestrians and vehicles notice your presence and ensures safety in the crowded crowd. Bicycle bells for adults with smooth and rounded surface, not hurt your hands, gently flick the spring trigger to hear a clear and loud ringing sound, making you and your children safer.Specifications: Condition: 100% Brand New Material: Aluminum Alloy Style: Modern Gender: Unisex Season: All Season Pattern: Contrasting Color Occasions: RidingPackage Contents: 1 * Bike BellNote: There may be 1-2 cm deviation in different sizes, locations and stretch of fabrics.Size chart is for reference only; there may be a little difference with what you get.Color may be lighter or darker due to the different PC display.Promise: If the product has any quality problems, please feel free to contact us, we will help you solve the problem as quickly as possible.