Colorful, capacious lever arch, 2 ring binders are ideal for organizing files and notebooks. Arch files look great on office shelves and bookcases. The spine is 2.75 inches. The rings are on the 11" side and are 2.75 inches center-to-center. Use with letter-size paper and letter-size 2-hole punches that punch holes 2.75 inches center-to-center.

These binders are NOT for A4 paper. Also, paper punched with a 2-hole punch for A4 paper WILL NOT fit these binders. Please be sure the paper you intend to store in Blumberg's lever arch binders is letter-size and has 2 holes punched 2.75 inches center-to-center on the 11 inch side (NOT on the 8.5 inch side; i.e. not for landscape documents). This is an International and European style binder with 2 rings, but it is NOT an A4 size binder and the holes are NOT 8 cm center-to-center.