Product Description SIZE & PRINT: 50pcs poly mailers 30 x 40cm included, Text Printed. THICKNESS: 3 Mil thick heavy-duty poly mailer are waterproof and durable, highly resisting tears, punctures and damages NO SEE THROUGH: These large poly mailers were no see through, black inner lining protect your privacy perfectly QUICK SEAL: Wrapla poly mailer come with quick self seal adhesive, is very sticky that will seal the bag very well and tamper-evident WIDELY USE: Our 30 x 40 cm shipping bags make a great idea for quickly shipping clothing, pants, blankets, leggings, t-shirts, and other non breakable items Wrapla Poly Mailers Is Your Best Choice. Size 30cm x 40cm Qty 50pcs rr d Widely use Wrapla Poly Mailers are suit for shipping, packaging, mailing, wrapping, scattered objects' Collection and temporary Storage. Ideal for mailing clothes, hoodies, apparel, jackets, sweaters, shirts, T-shirts, small backpacks, handbags, purses, shoe boxes, books and small business items, etc. Used in office-supplies, office-use, family, stores, shops, online stores, crafts, schools and warehouse.