SWINGLINE WireBind Spines, 1/4" Diameter, 40 Sheet Capacity, Black, 100/Box
High-tech, contemporary spine takes any presentation to the next level. WireBind lets pages lie flat with 360 degree rotation for convenient note-taking and photocopying. 32-ring metal spines permanently bind 11 x 8 1/2 documents. Sheet Capacity: 40; Spine Diameter: 1/4"; Number of Rings: 32.