US PACK SMART 12”x16" Opaque Plastic Deposit Bags with Security Tape Tamper Evident - Secure Bank Deposits, Cash Handling, & Currency Transport | Self-Sealing Tape with Hidden Graphics | 100-Pack

The quality and design is excellent.

These were larger than what we normally use but does the job. We ran out and Amazon was quicker than the bank to get them replaced. Thank you

Buy these. Stop looking at all the options. I used to protect against and provide evidence of tampering. Place any item in bag, seal, store or ship. Seals/edges are strong. Easy to write on. Bag thickness/mil is appropriate and very durable against tear.

The black interior is not thick enough or opaque enough to block light completely. I can see through the bag when held up to a window or desk lamp. Maybe that's typical -- I don't have other brands to compare it to. The 10" x 13" size will fit letter-size paper (8.5 in. x 11 in.) without folding. The width is actually less than 10", and you lose some space due to the seams, leaving just a 9" interior width. If you're curious about the different colors of the band at the top seen in the pictures, here's what's going on: There is a red strip of plastic that you peel off to expose the adhesive, after you've removed it and sealed the bag only the blue stripe remains.

I bought size 10 x 13 inch Security Bags to hold my 8 & 1/2 x 11 inch - regular size paper - items. The 10 x 13 inch bags will BARELY accommodate one sheet of 8 &1/2 inch by 11 paper! The package has been opened. I can't send them back. I've wasted my money. I would give it 0 stars if I could. Edit: I did get a refund on this item. Thank you so much! Buyer Beware! The 10 x 13 inch Security Bags are not sized correctly!