Description: 【Enhanced Night Visibility】: These bike reflectors are reflective to significantly improve visibility during nighttime cycling, ensuring a security ride 【Warning Reflectors】: Bike Front Rear Reflectors, providing multi directional reflection to tell others of your presence from various angles 【Lightweight Construction】: Made from lightweight plastic, these reflectors do not add unnecessary weight to your bike, allowing for easier maneuverability and a more comfortable ride 【Easy Installation】: Designed for convenience, these bicycle reflectors can be quickly installed on your bike, offering comprehensive road safety warnings for night riding 【Versatile】: Suitable for mountain bikes and road bikes, with front reflector dimensions of 3.5 cmx5.3 cm/1.38 inchx2.09 inch (bracket hole diameter 2.22 cm-2.7 cm/0.87 inch-1.06 inch) and rear reflector dimensions of 3.5 cmx5.3 cm/1.38 inchx2.09 inch (bracket hole diameter 3.5 cmx5.3 cm/1.38 inchx2.09 inch) Size Chart: front reflector: 3.5 cmx5.3 cm/1.38 inchx2.09 inch (bracket hole diameter 2.22 cm-2.7 cm/0.87 inch-1.06 inch) ; rear reflector: 3.5 cmx5.3 cm/1.38 inchx2.09 inch (bracket hole diameter 3.5 cmx5.3 cm/1.38 inchx2.09 inch Package Includes:2 Bicycle Front Rear Reflectors (with fixed bracket) Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.