I also have one of these inserts fitted that have a slight reactolite effect to them in sunlight, are anti fog, and reduce headlight glare at night as well, it's a really good all rounder which I've used for years.
Take your time putting it on though 'cos the double sided tape is not forgiving if you foc it up.
When mine leaks eventually from rain after a couple of years I strip off the old tape and carefully shape some new 1mm thick double sided tape onto it (in one long piece) and reuse it, sealing the 2 ends that meet with some clear rubber glue to make it airtight.
http://www.ebay.co.uk/itm/Progrip-Light-...23162c1709
Take your time putting it on though 'cos the double sided tape is not forgiving if you foc it up.
When mine leaks eventually from rain after a couple of years I strip off the old tape and carefully shape some new 1mm thick double sided tape onto it (in one long piece) and reuse it, sealing the 2 ends that meet with some clear rubber glue to make it airtight.
http://www.ebay.co.uk/itm/Progrip-Light-...23162c1709
More people are born because of alcohol than will ever die from it.