Description: Novel and compact, adopts 5 small high-brightness LED as the light source, high lighting brightness, more power saving. Back with clip design, can be clipped on bicycles, belts or backpacks, school bags, also with straps, can be tied to any required places, such as helmets, arms, legs, etc. acts as a safety warning, protect personal safety! With frosted texture shell, transparent lampshade is connected to the shell with high frequency sealing, which is not easy to fall off, press the button The switch is covered with expanded rubber, Water resistant rated to IPX-5, avoid the erosion of rain Three functions: click to enter, click to shift: long on - fast flash - slow flash - off, to meet the lighting needs of various riding; Versatile mini bike light: Not only used as bike tail light but also front light,helmet light,Perfect for cycling hiking jogging and other kinds. Specification: Material: ABS plastic Bulbs: 5 LED Lighting Modes:High/Slow Flash/Fast Flash Battery: 2 CR2032 button batteries (battery included); Weight: Net weight: about 20g, gross weight: 28g; Size Chart: Size(LxW) 5.7cm x 3cm/2.24x 1.18 inch Thickness 1.3mm/0.05 inch Strap: 23cm/9.06 inch Package Includes: 1 Piece Safety Lights(2 Pack) Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!