Strong Mailing Bags Grey Poly Postal Parcel Postage Mailer Bags ,Opaque  ,Cheap  MULTILISTING VARIOUS SIZES AND DIFFERENT QUANTITIES PLEASE SELECT FROM DROP DOWN MENU THE SIZE AND  QUANTITY 4.5" x 7" - 114 x 180mm 6.5" x 9" - 165 x 230mm 9" x 12" - 230 x 305mm 10" x 14" - 254 x 355mm 12" x 16" - 305 x 405mm 13" x 19"- 330 x 480mm 14" x 21" - 356 x 535mm 17" x 24" - 432 x 609mm 21" x 24" - 534 x 610mm 22" x 30" - 560 x 760mm 24" x 36" - 610 x 915mm 28" x 30" - 710 x 862mm 34" x 42" - 862 x 1080mm Features LIGHT WEIGHT to save you on postage. Gives a professional finish. WATERPROOF for your items to arrive safely MATERIAL is High Quality Polythene Thick and Reliable SELF SEAL is strong to ensure security. Quick & Easy Packaging. SURFACE Write directly on it or use sticky label or a Biro. Use document enclosed wallets. 100% RECYCLE material to do our bit for environment STRESS TESTED to ensure it is puncture and tear proof TOLERANCE Colour shade Light Grey to Dark Grey / Thickness may very slightly from batch to batch but Quality will be High OPAQUE 100% Non Transparent [Black inside] to ensure security of your items CHEAPER Its a lot cheaper then using Bubble Envelopes