Reference OEM Number: 6V0955485 / 000096706 It is a Replacement Of1K0955455, 8D0955455 Fitment: compatible for A1 2010-2018 compatible for A3 1996-2020 compatible for A4 1995-2015 compatible for A5 2007-2016 compatible for A6 1994-2018 compatible for A7 2010-2018 compatible for A8 1994-2009 compatible for Q3 2011-2018 compatible for Q5 2009-2017 compatible for Q7 2006-2015 compatible for TT 2014-2017 The cap are a direct replacement compatible for the standard plastic cap. It is made of a Rubber Material and open up to become a funnel shape, making pouring washer fluid in much easier and cleaner. Once opened they also stay open until you clip them shut again, they don't keep closing over like the standard cap as you are trying to pour liquid in. It will fit washer filler necks with a 46mm4.6cm-50mm 5cm diameter! May fit other makes and models too, just check the filler neck diameter becompatible for e ordering - They are being purchased compatible for a large range of cars!