Trimax TWL100 Ultra-Max Adjustable Wheel Lock Easy installation with instructions included Clamps tight to wheel for added security Rugged weather proof epoxy powder coat finish Heavy gauge steel disk covers lug nuts to prevent tire removal Easily adjusts to fit different tire/wheel sizes Ultra-Max Wheel Lock with disc covers lug nuts and prevents tire removal and theft Easily adjusts to fit many different size tires and wheels It has an adjusting arm so you can tighten the disc closer to the lug nuts on deeper wheels Comes with three keys and is available keyed alike Like all Trimax products it is covered by a lifetime warranty