What this product can offer you is that it has LED beads which is high brightness to use, and can adjust its lighting modes when using, and the light is easy for you to adjust, USB charging make it be convenient to charging and operate.Comes with mini compact size which allow you take it easily to outside for using, and it is ultra light to use for long time without broken.By making with aluminum alloy materials, this light is wear-resistant to use on bike.The length of the product is 3.6cm, the width is 3.3cm.It is suitable for install on bike, bicycle and scooter to lighting road and decorating.Item Name: Bike LightMaterial: Aluminum AlloyFeatures: LED, Adjustable, WaterproofWorking Time: 15 HoursBattery Capacity: 330 mAhCharge Time: 1.5 HoursWaterproof: IP4Light Beads: 10Light Modes: Constant, Breathing, Fast flashingSize Details: 3.6cm x 3.3cm/1.42" x 1.3" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Bike Light2 x Straps1 x Cushion1 x Rubber Band1 x Base1 x Light Base1 x USB Cable