GREY MAILING BAGS STRONG POLY POSTAL POST POSTAGE SELF SEAL PACKAGING STRONG
VERY STRONG AND DURABLE, WATERPROOF AND TAMPERPROOF. WE HAVE 10 SIZES AVAILABLE TO CHOOSE FROM 17" x 24" (432mm to 610mm). 17" x 22" (432mm to 559mm). 14" x 21 (356mm to 533mm). 15" x 18" (381mm to 457mm).