The new Multi Trailer Tester pack from Innovative Products of America lets you quickly and conveniently test or adapt to just about any trailer in North America. Testers include: 7-Round, 7-Way flat, 6 Round, and 4/5 pin. A three-way adapter is also included for connecting 7-way spade pin applications to 6-round, 4 and 5 pin trailers. Keep your equipment on the road.