GBC CombBind A4 Plastic Binding Combs, 21 Ring - Black - 8mm, Pack of 100

GBC CombBind A4 plastic binding combs in black, 8 mm diameter with 21 rings. Pack of 100 (GBC article 4028174). CombBind spines give you bound documents that can still be edited: pages lie flat for note-taking and photocopying, and pages can be added or removed. The combs are made from durable plastic and can be reused. They work with GBC CombBind and other 21-ring A4 comb binding machines.