Premium Quality: This 100 percent brand new mini running light is made of high quality silicone material, which is non-toxic and eco-friendly. It is not easily broken, the heavy duty water resistant rubber coating protects the entire light, which has reliable quality and long service life. Excellent Performance: The LED mini night light adopts excellent manufacturing process with strong magnetic closure, its unique design stays firmly in place and the magnet will not damage clothing, whcich can provide you with a practical and safe using effect. 2 CR2032 Batteries: The portable mini LED running light is powered by 2 x CR2032 coin cell batteries(included), which can be replaced by a small screwdriver. This LED safety light helps improve visibility and safety at night, Size: approx. 8 x 4 x 2cm or 3.1 x 1.5 x 0.7inch. Convenient to Use: The outdoor mini running button lamp is flexible, cordless and bendable, you can use it whenever you need a spotlight or emergency light. And its battery is included in the light, which is easy to be replaced. Wide Applications: The portable mini LED running light has high practicality, you can attach it to your belt, coat, collar, pocket, bicycle, reflective vest, armband, headband.