Package IncludesThe set includes two bike reflectors in different colors, red and white, enough for your daily demands. SizeThe size of our bicycle reflector is 5.3*3.5cm, which is moderate in size and suitable for most types of bicycles, so you can buy with confidence. MaterialOur bike reflectors are made of high-quality plastic, with strong ability to reflect light, exquisite workmanship, and durable for long-term use. ApplicationOur bicycle spoke reflectors are very useful bicycle accessories, they can reflect strong light in low light conditions, can help us ride safely, and are suitable for most bicycles. Easy To InstallOur bike reflectors come with mounting brackets, so they're easy to install, just attach the snaps to the bike's post, adjust the angle, and tighten the screws.