Product details of Comb Binding Plastic � A4, 10mm, 60sheets (Item No: B11-65) A1R4B52
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Features:

High Quality plastic with glossy finish
Made of rigid PVC plastic
Will not scratch, chip, peel, or discolor
Fit any standard 21 ring comb binding machines
Can be slightly cut to fit the shorter 19 ring binding machine
Work perfect for cookbooks, reports, proposals, calendars, paper, and other companies documents
Color:Black (the most commonly used color)
Length:A4 (21 Rings, Approximate 11-3/4″)
Shape: Round
Package Includes:
1 Unit