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" capacity holds up to 225 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" (25.40 mm) Binder Capacity - Letter - 8 1/2" (215.90 mm) x 11" (279.40 mm) Sheet Size - 3 Ring - Fastener: Round Ring - Pocket: Inside Front & Back - Chipboard, Polypropylene - Black - 9.60 oz (272.16 g) - Exposed Rivet, Non Locking Mechanism, Open and Closed Triggers, Double-trigger Metal Booster - 1 Each General Information Manufacturer: Business SourceManufacturer Part Number: 09976Brand 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" capacity holds up to 225 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" (25.40 mm)Sheet Standard: LetterSheet Size: 8 1/2" (215.90 mm) Width x 11" (279.40 mm) LengthNumber of Rings: 3Fastener Type: Round RingFastener Location: Spine-mountedFastener Material: MetalPocket Location: Inside Front & BackFeatures: Exposed Rivet Non Locking Mechanism Open and Closed Triggers Double-trigger Metal Booster Physical Characteristics Color: BlackMaterial: Chipboard Polypropylene Weight (Approximate): 9.60 oz (272.16 g) Miscellaneous Recycled: NoAssembly Required: NoCountry of Origin: Mexico Product Numbers: 035255099769