BSN36667 Features: -Features Reinforced Clasp: Rust Resistant - Clasp. -Features Reinforced Clasp: Manufacturer: Business Source. -Features Reinforced Clasp: Product Model: 36667. -Features Reinforced Clasp: Product Name: Heavy-Duty Clasp Envelope. -Features Reinforced Clasp: Manufacturer Part Number: 36667. -Features Reinforced Clasp: Packaged Quantity: 100 / Box. Product Type: -Plain Envelopes/Catalog Envelopes. Envelope Number: -12 X 15 1/2. Pack Size: -100. Country of Manufacture: -United States. Dimensions: Overall Height - Top to Bottom: -15.5". Overall Width - Side to Side: -12". Overall Product Weight: -7.8 lbs.