BikeMaster Folding Bar End Mirror FHM005F-K Bar end mirros with a difference Beautifully case mirror backing plate and arm are one-piece, eliminating screws and mirrors vibrating loose Nylon swivel allowing just the right amount of tension to be maintained for easy adjustment Not only do they have the usual adjustments, but they have a patented featue that allows them to quickly be folded in, reducing the width of the bike, and makin them less conspicuous