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Casque moto 54 cm
Source google image: https://ae01.alicdn.com/kf/HTB1AmaFOXXXXXbfXVXXq6xXFXXXu/1pc-3colors-Professional-Children-Motorcycle-Motocross-Helmet-Racing-Casque-Moto-Capacetes-Casco-Helmets-XS-52.jpg