Proclick Easy Edit Spines, 5-16" Diameter, 45 Sheet Capacity, Black, 100-box

Binding spines securely bind documents and let pages lie flat for 360° rotation. Spines zip open and closed to make adding or removing pages simple. Ideal for use with GBC® ProClick binding machines and pre-punched paper. Sheet Capacity: 45; Spine Diameter: 5/16"; Number of Rings: 32; Color(s): Black.