KENWOOD SK-200RM Rear Monitor Mounting Kit for Headrests 2 Sets Outer box, instruction manual, and accessories. Two hex wrenches are included, but one is missing. However, one is present, so installation shouldn't be a problem. It was convenient to have monitors in the back seats. One new unit costs 7200 yen on Amazon. Selling due to a car change. Please understand that there is some wear and tear. Please check the KENWOOD manufacturer's website for the model numbers of compatible monitors. Feel free to inquire about the price or ask any questions.