18 gauge insulated stranded blue wire sold by the foot.
Adding *1* to your cart gets you 1 foot of wire. Adding *2* to your cart gets you 2 feet of wire. Adding *3* to your cart gets you 3 feet of wire, etc., etc.
Williams/Bally reference number:
HW-30018-6 blue with NO stripeData East/Sega/Stern reference number:
601-5001-66 blue with NO stripe