EASY INSTALLATION/TOOL-LESS INSTALLATION: Quick-release, light weight stretchable, strong, durable, adjustable, silicone mounting straps. Securely attaches to handle bar for bumpy terrains. Fits around many size handlebars, post, backpacks, helmets and to keep lights and . They can be loosen and fasten, so no tools are required. SUPER BRIGHT BIKE LIGHT AND 6 MODES ON EACH LIGHT: Super Bright. Highest setting is blindingly bright. Perfect for Night trail rides road rides, hiking, camping, headlight, etc. MULTIFUNCTIONAL: This bike light set is versatile enough for cycling, hiking, camping, or any outdoor activity and can be used as emergency flashlight. This is great for cycling at night or in where visibility and safety are a concern. Easy to install and remove, only one piece of silicon tape can fix the bicycle lamp. Highlight the front and rear lights of your bike to enjoy safe night . Material: ABS Color as shown Package Contents: 2 x tail lights 2 x USB cables 2 x straps Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.