Brake boxes are a necessity for towing your rv safely. Being able to pull your rv is one thing, being able to stop it is another. We suggest that if you tow more than one trailer you get a brake box with a digital display for easy setting. Make sure you can safely stop your camper with a quality brake controller from rv parts country. It's important to provide quality brake control in your RV. Being able to stop your RV while towing a trailer is extremely important.