GBC® CombBind Standard Spines, 3/8" Diameter, 60 Sheet Capacity, Black, 100/Box

19-hole plastic spines bind 11" x 8 1/2" and oversized documents. Won't scratch, chip, peel or discolor. Compatible with GBC and other plastic comb binding machines. Editing capability with a machine. To select correct diameter, measure thickness of material (including covers) and add 1/8".

• Communicate your ideas with professional polish.
• 19-ring plastic spines won't scratch, chip, peel or discolor.
• Binds 11 x 8 1/2 documents.
• Perfect for internal reports and functional 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".