2 Goldwood Sound XO-310 round 3-way speaker crossovers with terminal plates and circuit breakers, heavy duty ABS plastic housings, spring loaded red and black raw wire connectors | 3-way wire harness, 18" straight pass through wires to woofer, 18" wires with resistor to the midrange, 24" wires with 4.0Mh capacitor to the tweeter | Auto circuit breakers, all wires have male crimp clamps, overall measurement of 4.5" round, cut out measurement of 3.25" round | Designed and engineered in the USA | Use for speaker cabinet, home speaker, car speaker, this listing and price is for 2 passive crossovers with terminal plates