Specification: length 2.2cm width 2.8cm

product Weight: 45g

including packaging weight: 61g

size of a single package: 11*5.6 * 3.5cm

package content: One Bell and two manganese steel binding strips. (the length is 12.1cm and the length is 9.2cm)

including packaging 61g

the sound is clear, the material is excellent, the shape is small, the disassembly is convenient, and the structure is as beautiful and fashionable as a helmet