(2) New ECHO Backpack BlowerShoulder Straps / Harness(Includes screws, washers and nuts)Part #C061000100(1) ECHO Backpack Blower StrapFOR USE ON THE FOLLOWING MODELS ONLY:PB-403 S/N: 03001001 – 04999999PB-403H S/N: 02001001 – 04999999PB-403T S/N: 02001001 – 04999999PB-413H S/N: 02001001 – 02999999PB-413HT S/N: 02001001 – 02999999PB-4600 S/N: 059919 – 999999PB-4600 Type 1EPB-460LN S/N: 03001001 – 04999999PB-461LN S/N: 02001001 – 02999999PB-46HT S/N: 001001 – 999999PB-46LN S/N: 001001 – 999999PB-600PB-6000 Type 1PB-6000 Type 1EPB-601PB-602 S/N: 03001001 – 04999999PB-603 S/N: 03001001 – 04999999PB-60HTS/N: 001001 – 568895PB-60HT S/N: 568896 – 999999PB-610 S/N: 02001001 – 02999999PB-611 S/N: 02001001 – 02999999PB-260L S/N: 03001001 – 07999999PB-260L S/N: P05913001001 – P05913999999PB-260L S/N: P28512001001 – P28512999999PB-261iPB-261L S/N: 02001001 – 02999999PB-261L S/N: 06001001 – 06999999PB-261L S/N: P07411001001 – P07411999999Administers weight evenly to reduce back pain