A loose-leaf binder has a cover and a ring mechanism. The ring mechanism includes a resilient base plate with curled edges and at least one rib extending laterally and downwardly. The ring mechanism also includes a pair of blades beneath the base plate and between the curled edges, the combined width of the blades being slightly greater than the distance between the curled edges. Also, the blades each have at least one slot along their outside edge to engage the rib. At least one pair of ring members fixed to the blades extend above the base plate to meet in a releasable juncture.