THIS LISTING IS FOR 1 PACKAGE EACH PACKAGE CONTAINS 50 PCS OF PART #ECQTH3 HANDLE TIE DEVICE These are Handle Ties, Used to join two single pole breaker handles, generally used when you have two single pole side by side breakers that share a neutral and therefore must by code turn off together. For Use With BQ, BQH, HBQ, BLH, HBL Circuit Breakers ' - Handle tie - Locks two breaker handles together for common operation - Can be used on Siemens single pole type QP - Can be used on Murray single pole type MP-T I have personally discovered that they will also work with some other brands too.