... 4,Easy change battery High flexible water-resistant silicone bicycle light1.High flexible waterproof silicone material2.Steady,durable,high tension stress3.Multifunction ... resistant,flexible silione body,silicone,steady,durable,high tension stress2)Multifunction mounted-It can be mounted on bicycle handle,seatpost, helmet, ... light,outdoor activities in the night,mountain-climbing light,bicycle light