GBC CombBind Binding Spines - 0.50" Maximum Capacity - 90 x Sheet Capacity - For Letter 8 1/2" x 11" Sheet - 19 x Rings - Black - PVC Plastic - 100 / Box

CombBind 19-ring binding spines bind up to 90 sheets of letter-size documents. Design allows you to add and remove pages with any comb-bind machine for quick edits. Rigid PVC plastic won't scratch, chip, peel or discolor. Standard, 1/2" diameter spines are compatible with GBC and other plastic comb-binding machines.