Special No-Gap D-ring design keeps sheets from slipping through rings. D-rings hold 40% more sheets than same size round rings. Pocket Guards hold papers securely within binder. Label holder sleeve on spine provides quick and easy identification of contents. Tough, long-lasting hinge for added durability. PVC-free. Maximum Capacity Range ("): 3 in; Sheet Capacity: 670; Color(s): Dark Blue; Binder Sheet Size: 11 x 8 1/2.