From the find man pages:

-exec command {} +
This variant of the -exec action runs the specified command on
the selected files, but the command line is built by appending
each selected file name at the end; the total number of invoca‐
tions of the command will be much less than the number of
matched files. The command line is built in much the same way
that xargs builds its command lines. Only one instance of `{}’
is allowed within the command. The command is executed in the
starting directory.
EXAMPLES
find /tmp -name core -type f -print | xargs /bin/rm -f

Find files named core in or below the directory /tmp and delete them.
Note that this will work incorrectly if there are any filenames con‐
taining newlines, single or double quotes, or spaces.

find /tmp -name core -type f -print0 | xargs -0 /bin/rm -f

Find files named core in or below the directory /tmp and delete them,
processing filenames in such a way that file or directory names con‐
taining single or double quotes, spaces or newlines are correctly han‐
dled. The -name test comes before the -type test in order to avoid
having to call stat(2) on every file.

find . -type f -exec file ‘{}’ \;

Runs `file’ on every file in or below the current directory. Notice
that the braces are enclosed in single quote marks to protect them from
interpretation as shell script punctuation. The semicolon is similarly
protected by the use of a backslash, though single quotes could have
been used in that case also.