These two panels fit in place of the factory pieces, and are made from 5mm wood for sturdiness. They fit the contours of the car to a T, and are the perfect pieces for your beloved BMW E10. They are meant to be upholstered (you can get the Genuine BMW gray vinyl from us as well → rb.gy/9u2phh) , and so there is a slight gap around the edges to allow for room for upholstery material.