Prima protractor 180 degree (1 piece)

This is an approximate conversion table to help you find your size.

Italian	Spanish	German	UK	US	Japanese	Chinese	Russian	Korean
34	30	28	4	00	3	155/75A	36	44
36	32	30	6	0	5	155/80A	38	44
38	34	32	8	2	7	160/84A	40	55
40	36	34	10	4	9	165/88A	42	55
42	38	36	12	6	11	170/92A	44	66
44	40	38	14	8	13	175/96A	46	66
46	42	40	16	10	15	170/98A	48	77
48	44	42	18	12	17	170/100B	50	77
50	46	44	20	14	19	175/100B	52	88
52	48	46	22	16	21	180/104B	54	88