Quality Park Survivor Tyvek First Class Envelopes First Class Mail - #15 1/2 - 12" Width x 15 1/2" Length - 14 lb - Peel & Seal - Tyvek - 100 / Box - White

Product Type - Envelopes/Mailers-Catalog Envelopes Seam Type - Center Flap Type - Square Trade Size - 15 1/2 Security Tinted - No Opening - Open End Closure - Redi-Strip Exterior Materials - DuPont Tyvek Basis Weight - 14 lb Exterior Dimensions - 12 x 15.5 Colors - White Color Family - White Format/border - USPS First Class Mail Format & Border Preprinted Message - First Class Mail Pre-consumer Recycled Content Percent - 0% Post-consumer Recycled Content Percent - 0% Total Recycled Content Percent - 0%