a lot of 10 self-adhesive shipping stickers, for batteries. 
you can fill in the number code yourself with a marker, so it is not only good for Lithium batteries (UN3481 or UN3480) but any of the other, more obscure battery or electronic types you may be shipping.

stickers are torn from an industrial sized roll (i bought more than i can realistically use in my lifetime). if you want them as one continuous sheet, instead of individually separated, just let me know at checkout. if one sheet, i'm still going to fold them so i can fit them in an envelope, though.

stickers are each 4x4 inches, so a little bigger than usual.
if you are planning on buying more than one lot, change the quantity at checkout (each quantity of "1" you buy will be 10 stickers, so "2" would be 20, "3" would be 30 pieces, etc). 
discounts if buying more than one lot at a time.