Material: The Bicycle Light Made Of Silicone & High-Quality LED Lamp Beads; Durable And Not Easily Damaged; Suitable For All Bike Guaranteed, Mountain, Big Road Bikes, City Bikes, Or Any Bike Including Kids Bikes And So On.Three Modes Of Switch: Front Cycle Light Or Taillight Can Support Full Light, Fast Flash And Slow Flash Mode, These Three Modes Help Or Alert Other Riders, Drivers, And Walkers Spot You When Riding In Low Light Or Complete Darkness.Feature: These Bicycle Light Durable And Not Easily Damaged, Easy To Install Quickly, Without Any Tools Required, Waterproof And Anti-Leaching Design - Not Afraid Rainy Weather; Add A Light To Your Bike, Backpack, Helmet Or Other Areas For Maximum Safety.Easy To Install: The Silicone Elastic Buckle Designed, Good Elasticity That Tightly Fit Around Many Size Seat Posts, Handlebars, Seat Risers, Backpacks, Helmets And Stretch To Keep Lights Secure And Firm, Easily Install And Fasten, Without Any Tools Required.Package Included: 8 Pack Bike Light Are Respectively 4 Pack Front Cycle Light And 4 Pack Taillight, With Each Bicycle Light Has 2 X CR2032 Batteries (Note: The Battery Is Already Installed); The Bike Light Red Silicone Is Red Light And Black Silicone Is White Light.Package Included: 8 Pack Bike Light4 Pack Front Cycle Light And 4 Pack Taillight Using Two CR2032 Button Batteries For Each Light; Note: The Battery Is Already Installed. All The Sustainable Use Of Light 35 To 70 Hours Scintillation Sustainable Use Of 160 Hours The Bike Light Red Silicone Is Red Light And Black Silicone Is White Light. One-Touch Switch Design, Easy Operation Easy To Install Quickly, Without Any Tools Required Anyone Can Mount This Taillight In Less Than A Minute.