The Range Top Trim, Black, forms a decorative trim along the top edge of the downdraft vent. This piece fits the downdraft vent on your cooktop so when the downdraft is down and not in use, the top of the downdraft will blend in. The trim is 30″. These trim accessories are compatible with many appliance brands and models; check to see if your model number is compatible. Installing this kit will require basic hand tools and novice repair experience.