Used these for towing travel trailer with Toyota Tacoma. Sold Tacoma and no longer need the mirrors.
These towing mirrors work well with stock truck/suv/car mirrors and are easy to put on and take off.
They stay securely in place, even at highway speeds, and provide good visibility.
Originally bought them for theor quality, adjustability, and sturdiness, being more stable than strap-type alternatives. While some customers report little to no vibration, others mention they vibrate like motorcycl