Staples Book Rings, 1", Silver, 100/Pack (44418) | Staples
Better 1-1/2" 3 Ring View Binder with D-Rings, Black (24059) | Quill.com
50 Pcs Staple Book Binder 20mm Outer Diameter Loose Leaf Ring Keychain Amazing Convenience Tool For Book Binder Ring - Binding Combs & Spines - AliExpress
50 Pack Metal Staples Binder 20mm O.d. Binder Ring Keychain New High Quality Binder Ring Portable And Easy To Use - Binding Combs & Spines - AliExpress
Hygloss® Metallic Book Rings, Assorted, 36/PK, 2 PK/BD | Staples
Staples Heavy Duty 1" 3-Ring View Binder with D-Rings and Four Interior Pockets, Red (ST56295-CC) | Staples
Office Depot
Pencil Grip Book Rings, Medium Capacity, Assorted Colors, 3/Bundle (TPG189) | Staples