IP67 Waterproof & Dustproof (TIP:To change the batteries, unscrew the tail cap for quick replacement.)Designed for durability, FORTO pen lights are IP67-rated, making them fully waterproof and dustproof. They can withstand temporary submersion in water and are ideal for outdoor or wet conditions like rain, snow, or dusty environments. Lightweight & Pocket-Sized Each penlight weighs only 52g and measures 5.2 inches, making it ultra-portable and easy to carry. The built-in clip allows you to attach it to your belt, pocket, or bag, making it a perfect companion for nurses, mechanics, and outdoor enthusiasts.