The listing, Avery white 2" x 4" shipping labels # 5163 has ended.
This is a box of Avery white 2" x 4" shipping labels #5163, 10 per page, 82 pages. (The box originally contained 100 pages.)
They come with a template and most software has templates corresponding to Avery label numbers.
Although this weighs a little over 2 lbs, I can mail this using Priority Mail Flat Rate, which keeps the postage cost down.
Postage includes tracking and may be paid to my PayPal account.