Front child bike seat blue Front child bike seat Front child bike seat Front and rear e bike child seat Front e bike child seat Rear child bike seat-Blue Age Range 2 - 6 years old 1 - 6 years old 1 - 6 years old 2 - 9 years old 1 - 6 years old 1 - 4 years old Weight Capacity up to 48lbs up to 48lbs up to 50lbs up to 110lbs up to 130lbs up to 48lbs Applicable Suitable for exercise bicycles, folding bicycles,mountain bikes,cruiser bicycles,hybrid bicycles, and bicycles. city bicycles, etc. Suitable for exercise bicycles, folding bicycles,mountain bikes,cruiser bicycles,hybrid bicycles, and bicycles. city bicycles, etc. Suitable for exercise bicycles, hybrid bicycles, Folding bicycles, cruiser bicycles and city bicycles, etc. Fitness Bikes、Foldable Bikes, Mountain Bikes, Cruiser Bikes, Hybrid bicycle suitable for all types of bikes with a rear rack,the length of the bicycle rear rack must be greater than 9.87 inches, and the width must be less than 6.29 inches. harness for kid click to view click to view click to view click to view click to view Suitable age 2-10 years old 2-10 years old 2-10 years old 2-10 years old 2-12 years old 2-12 years old Children's waist range 7.9-19.7inch 7.9-19.7inch 23.6-43.3inch 23.6-43.3inch 30.8-42.5inch 30.8-42.5inch Adult waist adjustment range 19.7-35.4inch 19.7-35.4inch 22-63inch 22-63inch 38.22-59.8inch 38.22-59.8inch Child weight limit under 60Ib under 60Ib under 60Ib under 60Ib under 66Ib under 66Ib