The box is sealed. The trestle set was manufactured for Hot Wheels to be used only with Hot Wheels Cars, Track and Power Boosters. Inside the box are 2 dual lane trestles and 3 one lane trestles to make hills for single or side by side racing. Also enables the building of a figure 8. They are plastic. There are no vehicles or track in the box. This was manufactured in 1969. We must collect 6% Pennsylvania Sales and Use Tax at checkout. Thanks for stopping by!