Features: Craft from aluminum alloy, this crankset boasts wonderful impact resistance and durability, ensuring long timing performances for your child bike. Enhances your child cycling experience with our children bike crankset, suitable for both single and double chainrings, designs to fit various kids bicycles. Great for youngly cycling enthusiasts and safety careful parents look to upgraded their children bicycles accessories for improved performances and quality. Perfect for daily commuting to school, cycling adventure in public garden or forests, and family gatherings where children can engages in cycling game or races. With its light weight designs, this crankset will not add unnecessary weight to the bike, making it easy and more exciting for children to ride while maintaining stability and safety. Specifications: Materials: Aluminum Alloy Color: As The Picture Shows Package Weight: approx.556g Size: approx.152mm/5.98in (More Size Detail, Please See Picture.) Package Includes: 1 Set of Kids Bicycles Crankset note: Please allow 1-2cm error due to manual measurement. Please make surer you not mind before your bid. Due to the differences between different monitors, the picture may not reflect the actual color to the item. Thanks!