You are purchasing a Professionally Tested Igniter Unit B by Rick’s Motorsport Electric in New Hampshire, I sent them a number of these, they did not all test good, this one tested good, they put the tape on this one and marked it good…. I have more that tested good should you want more than one… This fits a 1969 - 1971 Kawasaki H1 KH500. The OE part number is 21120-004.  U.S. shipping and handling is $7.00 in the lower 48 states. We ship worldwide as well. Payment is by PayPal. Insurance and delivery confirmation available upon request. No returns on electrical parts. Thank you.