I have always bought from Slims, not only because of their great product line but because I've called them for advice and they have always been patient and free giving of advice even though you know they are busy themselves valeting cars. Service is quick and evrything well packaged. No... they are not the only car supplies outlet but they are among the very best. You really can't go wrong, if you need it and they have it then get it from them. They also offer a loyalty scheme, which gives points you can use towards your purchases, I'm saving mine up to treat myself to something free! Good British, family business.