Pinit Supremex Double Window Envelopes, #9, 500/bx SKU SPX00001 $153.79 Quantity discounts available QuantityPrice (0) No Reviews yet Memo Quantity -+ Add to Cart Details FSC certified®. Security artline. Side seam. #9. 3-7/8" x 8-7/8". 24 lb. Top window size: 1-3/16" x 3-1/2". Top window placement: 2" from bottom. Bott... DetailsBackDetailsFSC certified®. Security artline. Side seam. #9. 3-7/8" x 8-7/8". 24 lb. Top window size: 1-3/16" x 3-1/2". Top window placement: 2" from bottom. Bottom window size: 1" x 4". Bottom window placement: 1/2" from bottom. 500 per box. Ratings and ReviewsNo reviews availableBe the first to Write a Review