Diode; Heat Sealed; Set of 4

Protects Vehicle's Electrical System. If you are looking for the complete package when it comes to towing accessories then look no further.Features & BenefitsHeat-Sealed Diodes To Connect Your Motorhome's Running Lights, Turn Signals And Brake Lights To Your Towed VehicleDiodes Prevent The Backflow Of Electrical Feedback To Protect Both Vehicles' Electrical SystemsPackage Features Four DiodesMade In USA