LOT of 100 ...YES!!!! 100 5X7 Brand New White Poly Mailers Secure Self Sealing Envelopes Plastic Bags SIZE - These shipping envelopes measure 5" x 7" Interior Dimensions PROTECTION - Each poly envelope is 2 MIL thick and outfitted with a dark gray inner lining for complete privacy while your items are in transit. Also waterproof and puncture resistant! SELF-SEALING POLY BAG - Featuring “Peel and Seal” closure technology.