Features: Single speed, simplified cycling experiences, suitable for commuting and leisures cycling. Electroplated colorful plate nails enhances attractiveness and meet various cycling needs. Wear resistant and rusts proof, long-terms as new. Suitable for fashionable cycling enthusiasts who pursues individuality and performances. Suitable for street, and light mountain paths. Specifications: Dimension:12×9.6mm/0.47×0.37in 10×4.9×6.4mm/0.39×0.25×1.92in Component:high-carbon steel Package Includes: 1Set Chainring Bolts note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.