GBC CombBind Binding Spines - 1" Maximum Capacity - 225 x Sheet Capacity - For Letter 8 1/2" x 11" Sheet - 19 x Rings - Black - Plastic - 100 / Box

These durable, 19-ring binding spines are compatible with any comb-style binding machine and 19-hole, prepunched accessories. Use the CombBind binding spines to produce neatly bound documents and presentations. These durable, plastic spines allow pages to lie flat and won't scratch, chip, peel or discolor.