DetailsHeavy duty vinyl ring binder is widely used on USA and European market. it is hardly, strong material. A. Products Information               SizeLetter sizeCover2mm cardboard, 0.18mm vinyle (pvc)pocketThree pocket on outside; two pocket on insiderRing2,3,4,Packaging1pc/opp bag; 24pcs per cartonB. OEM on vinyl ring binder 1. Custom size A4/A5/Letter/Legal/Book Spine size: 3/4 inch; 1 inch; 1.5 inch; 2inch; 3inch 2. Custom Cover. 2.1 Cover material: cardboard (from 1.8mm - 2.5mm); PVC (0.15mm-0.22mm) 2.2 Cover sale sheets 2.3 Cover pocket 2.4 Cover color: red/ black/blue/green/yellow 4. Binding 2,3,4 O or D ringC. Service 1. Will refund cost after confirmed the problems products from our production. 2. Help customer to an

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