Ideal for gift giving. ONE PIECE SPOKES SET: This wheel spoke set contains spoke lights, 2 retainer straps for each light (batteries not included) for each light, perfect for your safety and night cycling decoration. Be safe at night and enjoy your driving moments. EASY TO INSTALL AND WATERPROOF: This bike wheel light is designed with 2 slots, just press one of the wheel slots and properly pull the light from the bike spokes. Try spinning the wheel and make sure it's secure. Then secure it with the straps. The LED ray light is designed with a spherical cover, which is waterproof, and you don't have to worry about turning over on rainy days! Three lighting modes: tire light can be switched to 3 modes: strobe, flashing and steady by pressing the rubber dome shape. You can choose the right model according to your favorite speed SAFETY GUARANTEE: The bike warning light is perfect for safe riding at night, with amazing color LED light and 3 flashing modes, perfect for cool and safe, suitable for all kinds of 2mm spoke bikes< /p>