new children’s bicycle for boys and girls aged 6–12, suitable for elementary school students and older kids; 20-inch mountain bike with variable gears. 新款儿童自行车6-8-10-12岁男女孩小学生中大童20寸变速山地单车

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18 inches [suitable for heights of 115–135 cm] 20 inches [suitable for heights 128–145 cm] 22 inches [suitable for heights 140–160 cm] 24 inches [suitable for heights 150–170 cm] 26-inch [suitable for heights 160–180 cm]