Quality Park 9 x 12 Catalog Mailing Envelopes with Redi-Strip® Self-Seal Closure

Catalog - 9" Width x 12" Length - 28 lb - Peel & Seal - White - 100 / Box. Time-saving, self-seal closures - just peel and press for a clean, instant seal. First-class border gets your recipients attention and emphasizes first-class shipping.