Basic round-ring binder features two triggers on the ring mechanism that provide easy access to your documents. Back-mounted metal rings allow pages to lie flat. 1-1/2" capacity holds up to 350 letter-size sheets. Clear pockets inside front and back covers offer extra document storage with a 30-sheet capacity for each pocket. Design also features a sturdy chipboard core and exposed rivets. Three-ring binder is made of polypropylene. Business Source Basic Round Ring Binder - 1 1/2" (38.10 mm) Binder Capacity - Letter - 8 1/2" (215.90 mm) x 11" (279.40 mm) Sheet Size - 250 Sheet Capacity - 3 Ring(s) - Fastener(s): Round Ring - Chipboard, Polypropylene - Green - Open and Closed Triggers, Sturdy, Exposed Rivet - 1 Each General Information Manufacturer: Business SourceManufacturer Part Number: 28557Brand Name: Business SourceProduct Name: Basic Round Ring BinderMarketing Information: Basic round-ring binder features two triggers on the ring mechanism that provide easy access to your documents. Back-mounted metal rings allow pages to lie flat. 1-1/2" capacity holds up to 350 letter-size sheets. Clear pockets inside front and back covers offer extra document storage with a 30-sheet capacity for each pocket. Design also features a sturdy chipboard core and exposed rivets. Three-ring binder is made of polypropylene. Packaged Quantity: 1 EachProduct Type: Reference Binder Product Information Binder Capacity: 1 1/2" (38.10 mm)Sheet Capacity: 250Sheet Standard: LetterSheet Size: 8 1/2" (215.90 mm) Width x 11" (279.40 mm) LengthNumber of Rings: 3Fastener Type: Round RingFastener Material: MetalFeatures: Open and Closed Triggers Sturdy Exposed Rivet Physical Characteristics Color: GreenMaterial: Chipboard Polypropylene Miscellaneous Recycled: NoAssembly Required: NoCountry of Origin: Mexico Product Numbers: 035255285575