@ japluva - it wasnt any of them packs, only had 3 in it, but the one with the two big ones in looks the best bet, ill go and measure it for you tomorrow sounds a bit dodgy haha! @liam - yh ive had the gromets for ages and have put off doing it because i like clearing the rain off my back window but im getting used to it now, you can still see through it when it rains because it stays as dots of water on there