Binding Machine, 21-Hole, Comb Binding Machines with 1 Box Comb Bindings Spines, Comb Binder for Letter/A4/A5 Paper, 12 Sheet Punch Capacity. ➤Max punch capacity: 10-12 sheets of printing paper(paper thickness≤80g(20lb) ), 2 sheets of 230g(≤85lb) cover/textured paper, 1 sheet of 5-12mil PVC cover.
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