All aspect protection for your drone batteries. Features: - Custom designed battery bag to perfectly fit your drones batteries. - Made of flame retardant woven fiberglass. - Heat-resistant, radiation safe and explosion-proof able to bear high temperatures. - Perfect for on-the-go. Don't worry about your extra batteries - Getting damaged in your backpack. - Easy to open/close with a very secure Velcro closure. - A must have for safe charging, traveling, transport and storing batteries. - Includes two battery safe bags (batteries not included) - Safely charge and store two SPARK batteries