• 72 colorful and fluorescent reflective strips for bicycle spokes. • Easy to install, enhance safety, and add a cool touch to your bike. • Cross-shaped inner buckle structure for greater security, compatible with general bicycle spokes. • Can only be installed on round wire. Reflective material without light emission or fluorescent agents. • Inner diameter: 1.9 – 2.4 mm. Outer diameter: 5 mm. Check your bike's specifications before purchasing. • Ideal for decorating and protecting your bike during your rides.