Here are the possible solutions for they give size and price information for clothes clue
Answer
Clue
Relevancy
tags
Clue
They give size and price information for clothes
barcodes
Clue
Electronic providers of price and inventory information
Definition
BARCODE, an arrangement, readable by computer, of thick and thin parallel lines, e.g. printed on, and giving coded details of, goods at a point of sale, library books, etc.
lend
Clue
Give someone a book that they'll "give back to you when they're done reading," as I did with "The Wind-Up Bird Chronicle" over three years ago
Definition
to give for a time only
xrays
Clue
They give inside information
areacode
Clue
Information information
metadata
Clue
Information about information
Information about other information
Definition
information about information already supplied, e.g. details about a site on the Internet