UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM 8-K

                        PURSUANT TO SECTION 13 OR 15 (D)
                     OF THE SECURITIES EXCHANGE ACT OF 1934


       DATE OF REPORT: May 5, 2004             COMMISSION FILE NO. 0-22810
   (Date of earliest event reported)


                        MACE SECURITY INTERNATIONAL, INC.
             (Exact name of Registrant as specified in its charter)


             DELAWARE                                   03-0311630
  (State or other jurisdiction of                    (I.R.S. Employer
   incorporation or organization)                    Identification No.)



              1000 Crawford Place, Suite 400, Mt. Laurel, NJ 08054
                    (Address of Principal Executive Offices)

         Registrant's Telephone No., including area code: (856) 778-2300





Item 7    Financial Statements and Exhibits.

          (c) The  following  Exhibits  are hereby filed as part of this Current
          Report on Form 8-K.

          99.1 Press Release issued by Mace Security  International,  Inc. dated
          May 5, 2004.

Item 12   Results of Operations and Financial Condition

          On May 5,  2004,  Mace  Security  International,  Inc.  issued a press
          release  announcing its financial  results for the first quarter ended
          March 31,  2004.  A copy of the press  release is  attached as Exhibit
          99.1 and is incorporated herein by reference in its entirety.

          The press  release  contains a  non-GAAP  financial  measure,  EBITDA.
               EBITDA is  calculated  as income  before  cumulative  effect of a
               change in  accounting  principle  adding back  interest  expense,
               income taxes,  depreciation and amortization  expense. We believe
               that  EBITDA,  as  presented,  represents  a  useful  measure  of
               assessing  the  performance  of  our  operating   activities  and
               resources available for strategic  opportunities,  as it reflects
               our earnings  trends,  without the impact of certain non-cash and
               unusual  charges or income.  EBITDA is also used by our creditors
               in  assessing  debt  covenant  compliance.  We  understand  that,
               although   security   analysts   frequently  use  EBITDA  in  the
               evaluation  of  companies,  it is not  necessarily  comparable to
               other  similarly  titled  captions  of  other  companies  due  to
               potential inconsistencies in the method of calculation. EBITDA is
               not intended as an alternative to cash flow provided by operating
               activities as a measure of liquidity,  as an  alternative  to net
               income as an indicator of our  operating  performance,  nor as an
               alternative  to any other  measure of  performance  in conformity
               with generally accepted accounting principles.


                                   SIGNATURES


Pursuant to the  requirements  of the  Securities  and Exchange Act of 1934, the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.


                                  MACE SECURITY INTERNATIONAL, INC.

                                  By:       /s/ Gregory M. Krzemien
                                           -------------------------------------
                                           Gregory M. Krzemien
                                           Chief Financial Officer and Treasurer


Date:    May 5, 2004






                                  EXHIBIT INDEX



Exhibit No.         Description
-----------         -----------
99.1                Press Release  issued by Mace Security  International,  Inc.
                    dated May 5, 2004.