HGP #000 XL, 5" x 8", 500 Pack, Kraft Bubble Mailers Padded Shipping Envelopes Self Seal Extra Wide Size.

Been using this product for years, with thousands of mailers purchased. There is no complaint.There is not a lot of mailers on Amazon available in 5" x 8" dimension, so this one fits my needs perfectly

It worked great for the item I needed to mail out. Just the right size!