Steamlight PlyStylus Flashlights areasily concealable, highly durable, small size flashlights. These pen lights from Streamlight are made from FiberWrap fiberglass epoxy that make the lights highly resistant to bending, and flexing. IPX4 rated for water resistant operation, these lights are great for all types of work such as consturction, law enforcement, fire & resuce, industrial, and other applications. the lens is sealed, prevening dirt and dust built-up from forming inside and hurting the preformance. Streamlight PlyStylus Flash Light Series can be kept in your pocket just for emergency situations.