High quality material: Our oak beads made of highly elastic and durable plastic and resin. Bright colors, durable, not easy to fade or deform. Waterproof and stainless, small size, easy to use and carry, very attractive and functional. Easy installation: Simply attach the spoke beads to your children"s bike spokes and convert the wheels in seconds. Bicycle accessories for children easy to install and remove, suitable for most standard bicycle spokes. High visibility reflection: 3 shapes spoke clips spoke clicker, circle, heart, star. The circular oak beads glow, long glow at night for 6-8 hours, the multi-colored oak beads add to the bike"s attractiveness. Product Size: Round beads measure 1.4cm in diameter, star beads measure 2cm in diameter, heart beads measure 2cm in diameter. Fits spokes with a diameter of 2 mm Total 144 spoke beads in the package. Sufficient for use and replacement. Wide range of use: Our spoke reflectors are compatible with most bicycle spokes and can easily decorate bicycles, motorcycles, strollers, wheelchairs and strollers, etc. and make your trips a pleasure.