I still don't have a mental image when things are described in metric measurements. Describe something as an inch versus an inch and a half and I can pretty much envision the difference. Say 43 or 48 or 50 mm and all I know is that the 50 is probably larger than the 48.
By the way, the Palms Dealer buttons are just a tad (a tad is a highly scientific term) larger than the Mint NCV chips.