<ARTICLE> 5
<MULTIPLIER> 1,000

                                                  
<PERIOD-TYPE>                   6-MOS                   YEAR
<FISCAL-YEAR-END>                          DEC-31-2000             DEC-31-1999
<PERIOD-START>                             JAN-01-2000             JAN-01-1999
<PERIOD-END>                               JUN-30-2000             DEC-31-1999
<CASH>                                           2,234                   1,023
<SECURITIES>                                         0                       0
<RECEIVABLES>                                   54,643                  52,307
<ALLOWANCES>                                     1,597                   1,270
<INVENTORY>                                     30,774                  27,624
<CURRENT-ASSETS>                                92,901                  85,648
<PP&E>                                          40,240                  37,848
<DEPRECIATION>                                  30,300                  27,731
<TOTAL-ASSETS>                                 149,255                 132,350
<CURRENT-LIABILITIES>                           53,413                  50,333
<BONDS>                                          1,707                   4,131
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                             0                       0
<OTHER-SE>                                      92,343                  78,498
<TOTAL-LIABILITY-AND-EQUITY>                   149,255                 132,350
<SALES>                                         81,363                 166,556
<TOTAL-REVENUES>                                98,428                 200,622
<CGS>                                           39,130                  78,803
<TOTAL-COSTS>                                   50,463                  99,641
<OTHER-EXPENSES>                                34,938                  76,023
<LOSS-PROVISION>                                   516                   1,822
<INTEREST-EXPENSE>                                 316                     925
<INCOME-PRETAX>                                 12,822                  37,759
<INCOME-TAX>                                     5,129                  15,459
<INCOME-CONTINUING>                              7,693                  22,300
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                     7,693                  22,300
<EPS-BASIC>                                       0.10                    0.29
<EPS-DILUTED>                                     0.10                    0.29