Ring Binder 1.PP 3-O ring binder 2.20 years experience 3.high quality, fast delivery, reasonable price Style:ring binder Reference details-- Black Y-D Ring Binder with ... pcs, 26 pcs, etcOptions of O-ringO-ring (2-O ring, 3- O ring, 4-O ring)D-ring (2D ring, 3D ring, 4D ring)Slanted-ring, etc Artwork formatPDF, AI,CDR etcDelivery ...