Avery Tab 21 Numerical individual divider set measuring 8 1/2" x 11" has unpunched binding edge that aids to fit perfectly with any binding system. Letter size divider made of 30 percent post-consumer recycled content renders added durability. Tabs are printed on both sides. Binding edge is unpunched so indexes can fit any binding system. Dividers made with 20% post-consumer recycled paper. 21 tab. White tab. 25/Pk. Sold as 25/Pack.