Buy Letter Size 3-Ring Plastic Binder Mechanisms Online | Binding101
A4 4 Ring Folders, A4 Ring Binder Folder, Plastic Folder Ring Binder, with 25 mm D Metal Ring for A4 Size, Holds up to 230 Sheets, 38 mm Spine, Blank Cover A4
PLASTIC RING BINDER 3/4'' 20MM | Trinity Marketing Inc.
Ktrio Sheet Protectors 8.5 x 11 Inches Clear Page Protectors for 3 Ring Binder, Plastic Sleeves for Binders, Top Loading Paper Protector Letter Size, 50 Pack - Walmart.com