Shinkansen Helmet For Kids Series E7 'Kagayaki'

Target Age (approximate): 3 to 8 years old
Head Size: 50-56 cm
Size: 26 x 22 x 14 cm Overall Size: 32 x 22 x 14 cm (including mount)
Weight (approximate): 300g

You can use it in the perfect size with the dial type adjustment adjuster.
It is an SG standard compliant product that is a safety and security standard for helmets.
Lightweight type with less strain on the neck.