1. Material: aluminum alloy + nylon base 2. Characteristics: crisp bell sound, beautiful modeling, long lasting aftertaste 3. Compact size, installation does not occupy the position, does not affect the shifting, braking operation 4. Leather base can be used for all kinds of shaped handlebars under 40mm, and the clamp ring base can be used for most handlebars under 22.2mm 5. Weight: rubber band model about 37 g, clip ring model about 43 g 6. Size: about 5 x 4 cm
