Ballprof or Ballproof: How To spell?
The word Ballprof is misspelled against Ballproof, an adjective meaning "Incapable of being penetrated by balls from firearms."
Ballproof has double "oo" is mispronounced as "o"Remember double 'OO' in between the strings ballpr & f which should not be misspelled with single 'O'
Wrong Spelling:  ballpr-o-f  Correct Spelling:  ballpr-oo-f 
Find more incorrect spellings of Ballproof to spell right way.