Speed Fix Clamp On Mirror for Cars & Trucks - Adjustable Universal Rearview Mirror with Quick Installation - Perfect for Road Trips, Parking & Safety Driving

We've had two sets of these mirrors for towing our new trailer. They work great. But one must be careful mounting them as they can work loose. Our SUV side mirrors adjust automatically when we shift from drive to reverse and back. This may be the problem. Over time, it may nudge the two clamps off. We're about to purchase another set and are hoping that if they ever work loose again a little leash will prevent them from ending up on the road or shoulder and being trampled by a semi as happened most recently. They come in pairs, with a left side and right side mirror. The two sides are not interchangeable.