14 1/2 x 20 - #7 Self-Seal Reinforced Mailer 250/Case

These self - seal reinforced mailers are made with laminated fiberglass strands sandwiched between kraft paper layers. This unique construction gives them extra tensile strength and excellent protection against grease, water, and oil. The fiberglass reinforcements also safeguard the envelopes from tearing, puncturing, and abrasion. As they are unpadded, they are a cost - effective option for mailing items that don't need cushioning.

How to use: Simply open the self - seal flap, put your item inside, and seal it. It's that easy! These envelopes are great for mailing things like documents, flat items, or anything that doesn't need extra padding. Note: Since these envelopes are unpadded, don't use them for fragile items that might break if they get bumped around. Maintenance: Keep the envelopes in a dry place to prevent damage from moisture. If they get a little dirty, you can gently wipe them with a dry cloth.