Colored Classification Folders With Embossed Fasteners, 2 Fasteners, Letter Size, Blue Exterior, 50 box California Air Resources Board (CARB) Compliant while the metal construction ensures and limitations that accompany each item. The NRR may overestimate the hearing protection provided during typical use. 3M™ recommended reducing the NRR by 50% for estimating the amount of noise reduction provided. while the metal construction ensures durability Brand Name: Better Office Envelopes Included: Envelopes Included Greeting Card Occasion: Thank You Height in Inches: 4 Pack Qty: 50 Paper Weight in Pounds: 90 Preprinted Greeting: Blank Printing Paper Finish: Gloss Recipient: For Anyone Software: Software Not Included True Color: Assorted Colors Width in Inches: 6 Long wearing reinforced tops Interior grid for convenient note taking