Made Of ABS And PP. Features 2 Lights Stored In A Clear Case With Magnetic Closure. 2 Light Colors – White And Red. Red Light - 8 Lumens, White Light - 5 Lumens. 3 Light Settings – Solid, Slow Flashing And Fast Flashing. Stay Safely Visible While Running, Walking, Biking, Etc. Elastic Strap To Easily Attach to Bike. Lithium Button Cell Batteries Included.