Illumarine RG Rail Mounted Back-Up Navigational Lighting System Securely and easily attaches to the sides OR front railing system of your boat and pivot to the proper angles The built in tightening rods allow for "No Tools Needed" The wireless, Patent-Pending design allows the entire system to set up in under 5 minutes Super Water-Resistant And Splash Proof and is equipped with an Emergency Flasher setting All Batteries are Included