ONZE MAAT	UK MAAT	US-MAAT	DIAMETER
EXTRA SMALL	J-L	5-5.5	15.5MM-16.1MM
SMALL	M-N	6-6.5	16.3MM-16.7MM
MEDIUM	O-P	7-7.5	17.1MM-17.9MM
LARGE	Q-Q 1/2	8-8.5	18.3MM-18.8MM
EXTRA LARGE	R-S 1/2	9-9.5	19.2MM-19.6MM
XXL	T-U	10-10.5	19.8MM-20.2MM