I bought these because I have a 1.5 inch opening in the tailgate of my 2003 Sequoia. The dimensions show that a 1.5" plug was included, but this measurement is taken from the outside of the top section of the plug, not the hole size it fits into. The 1.5" connector was too small, it would probably fit the 1.25" hole, but the 1.75" connector was too big. It would be very helpful if the seller provided not only the outside size but also the size of the hole that fits each of the plugs. .