Detailed Product Description

1/4" calendar binding/6.4mm calendar binding rings

Double ring binding

size		Pitch(mm)
inches	mm		inches	mm	pages(80g)
1/4	6.4	3:1	3/16	4.8	45
5/16	7.9	3:1	1/4	6.4	60
3/8	9.5	3:1	5/16	7.9	75
7/16	11	3:1	3/8	9.5	85
9/16	14.3	3:1	1/2	12.7	120
1/2	12.7	3:1	7/16	11.1	100
5/8	16	3:1	9/16	14.3	135
5/8	16	2:1	9/16	14.3	135
3/4	19	2:1	5/8	17.5	165
7/8	22.2	2:1	3/4	20.6	180
1	25.4	2:1	7/8	23.8	200
1-1/4	31.8	2:1	1	25.8	220