They come in different shapes and sizes. I just recently bought another one from the Italian ebay. It is made of hard plastic and sits just outside the light sockets, so the front looks like Harry Palmer (The Ipcress File). There are others out there countoured to fit around the headlights. Unfortunately, as always not of them fit perfectly and may need some adjustments/alterations. I now have three pairs of these. I saw Pete126's version which he got from 126SKfan (I have got this one also) and he has done a very good job of fitting his, so I will have another go at mine.