Features:Functional reflectors: These gate reflectors can send prompt signals for drivers at night, the reflected light is uniform and not dazzling, making the driver's night driving safer.Practical gifts: You can prepare these round reflectors for your backup, or send them to your friends, family members, colleagues and neighbors on some meaningful days, bringing a lot of convenience to them and improving your relations.Specifications:Material: plasticColor: white, red, yellowDiameter: approx. 8 cm/ 3.165 inches Hole diameter: approx. 0.19 inchPackage includes:15 x Round reflectorsNotes:Manual measurement, please allow slight errors on size.The color may exist a slight difference due to different screen displays.