Amazon.com : Amazon Basics 3 Ring Binder with 1 Inch D-Ring and Clear Overlay, White, Pack of 4 : Office Products
Staples® Better 1" 3 Ring View Binder with D-Rings, Navy Blue (24048) | Quill.com
Amazon.com : Samsill Durable 1 Inch Binder, Made in the USA, D Ring Binder, Customizable Clear View Cover, White, 12 Pack, Each holds 225 Pages : Office Products
Business Source Slanted D-ring Binders - 3" Binder Capacity - 3 x D-Ring Fastener(s) - 2 Internal Pocket(s) - Chipboard, Polypropylene - Red - PVC-free, Non-stick, Spine Label, Gap-free Ring, Non-glare, Heavy
Buy 1" Standard White D-Ring Clear Overlay View Binders - 1pk (SDRCV100WH)