The Basser DMVOLV02 with Spacer ring, MDF, 165mm, Volvo, impregnated is an electronic part used to protect the inner workings of vehicles from dust, dirt and other contaminants. This part is manufactured by Basser and is designed specifically for Volvo vehicles. It features a special spacer ring made from MDF (medium density fiberboard) to provide an extra layer of protection, and 165mm width to ensure it fits snugly in place. The impregnation process reinforces the part and helps protect against corrosion and other wear and tear.