These are a great combination to the Competition style mirror caps we stock! Compared to the stock indicators that simply blink in a clear lens, these sweep across in a animated style behind a smoked dark lens! Relatively easy to fit by Removing Mirror glass pieces to access screws, However, Professional installation is advised! FITS: BMW 1 Series 2012-2017 BMW 2 Series 2014-2017 BMW 3 Series 2012-2018 BMW 4 Series 2014-2017 UK Delivery- EST. 2-4 Business days