GBC 4000020 1/4 in. Diameter 25 Sheet Capacity CombBind Standard Spines - Black (100/Box)

Communicate your ideas with professional polish. 19-ring plastic spines won't scratch, chip, peel or discolor. 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". Sheet Capacity: 25; Spine Diameter: 1/4"; Number of Rings: 19; Color(s): Black.

Durable 19 hole plastic spines Machine needed to add or remove documents 1/4" diameter spine size 25 sheet capacity 100 per pack Black