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GBC CombBind Standard Spines 4000020$14.64
Communicate your ideas with professional polish. 19-ring plastic spines won't scratch, chip, peel or discolor. Perfect for internal reports and functional documents.
Bind 11 x 8 1/2 documents. Editing capability with a machine. Compatible with GBC and other plastic comb binding machines.
To select correct diameter, measure thickness of material (including covers) and add 1/8".